Vitamin E

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A nutrient that the body needs in small amounts to stay healthy and work the method it should. It is fat-soluble (can dissolve in fats and oils) and is found in seeds, nuts, leafy green veggies, and veggie oils. Vitamin E boosts the body immune system and helps keep embolism from forming. It likewise assists prevent cell damage triggered by complimentary radicals (highly reactive chemicals). Vitamin E is being studied in the prevention and treatment of some kinds of cancer. It is a type of anti-oxidant. Also called alpha-tocopherol. (1 )

Summary

Vitamin E is a vitamin that liquifies in fat. It is discovered in many foods including vegetable oils, cereals, meat, poultry, eggs, and fruits.

Vitamin E is an important vitamin needed for the correct function of many organs in the body. It is also an anti-oxidant. Vitamin E that takes place naturally in foods (rrr-alpha-tocopherol) is different from manufactured vitamin E that is in supplements (all-rac-alpha-tocopherol).

Vitamin E is utilized for treating vitamin E shortage, which is unusual, however can take place in people with particular congenital diseases and in very low-weight premature infants. Vitamin E is likewise used for lots of other conditions, however there is no good clinical evidence to support many of these other usages. (2 ).

History

Vitamin E (α-tocopherol) was found almost 100 years earlier since it was needed to prevent fetal resorption in pregnant, vitamin E-deficient rats fed lard-containing diets that were quickly oxidizable. The human diet plan consists of eight different vitamin E-related particles manufactured by plants; despite the fact that all of these particles are peroxyl extreme scavengers, the human body prefers α-tocopherol. The biological activity of vitamin E is highly reliant upon regulatory systems that serve to retain α-tocopherol and excrete the non-α-tocopherol forms. This preference is dependent upon the mix of the function of α-tocopherol transfer protein (α-ttp) to improve the plasma with α-tocopherol and the metabolic process of non-α-tocopherols. Α-ttp is vital for human health due to the fact that anomalies in this protein result in extreme vitamin E deficiency defined by neurologic abnormalities, especially ataxia and ultimately death if vitamin E is not provided in big amounts to conquer the absence of α-ttp. Α-tocopherol works as a peroxyl radical scavenger that secures polyunsaturated fatty acids in membranes and lipoproteins. Although particular pathways and specific molecular targets have actually been looked for in a range of research studies, the most likely explanation as to why people require vitamin E is that it is a fat-soluble anti-oxidant. (3 ).

Synthesis

Biosynthesis

Photosynthesizing plants, algae and cyanobacteria manufacture tocochromanols, the chemical household of compounds comprised of 4 tocopherols and 4 tocotrienols; in a nutrition context this family is described as vitamin E. Biosynthesis starts with development of the closed-ring part of the molecule as homogentisic acid (hga). The side chain is connected (saturated for tocopherols, polyunsaturated for tocotrienols). The pathway for both is the same, so that gamma- is produced and from that alpha-, or delta- is produced and from that the beta- compounds. Biosynthesis occurs in the plastids.

As to why plants synthesize tocochromanols, the significant reason seems for antioxidant activity. Different parts of plants, and various species, are dominated by various tocochromanols. The predominant form in leaves, and hence leafy green vegetables is α-tocopherol. Place remains in chloroplast membranes, in close proximity to the photosynthetic process. The function is to secure versus damage from the ultraviolet radiation of sunlight. Under normal growing conditions the existence of α-tocopherol does not appear to be essential, as there are other photo-protective compounds, and plants that through mutations have actually lost the ability to synthesize α-tocopherol show normal development. However, under stressed growing conditions such as dry spell, raised temperature level or salt-induced oxidative stress, the plants’ physiological status transcends if it has the typical synthesis capability.

Seeds are lipid-rich, to offer energy for germination and early growth. Tocochromanols protect the seed lipids from oxidizing and becoming rancid. The presence of tocochromanols extends seed longevity, and promotes successful germination and seedling development. Gamma-tocopherol dominates in seeds of most plant species, however there are exceptions. For canola, corn and soy bean oils, there is more γ-tocopherol than α-tocopherol, but for safflower, sunflower and olive oils the reverse is true. Of the commonly used food oils, palm oil is unique because tocotrienol material is higher than tocopherol material. Seed tocochromanols content is likewise depending on environmental stress factors. In almonds, for instance, dry spell or elevated temperature level increase α-tocopherol and γ-tocopherol material of the nuts. The very same post discusses that drought increases the tocopherol content of olives, and heat also for soybeans.

Industrial synthesis

Naturally sourced d-alpha-tocopherol can be extracted and cleansed from seed oils, or gamma-tocopherol can be drawn out, cleansed, and methylated to create d-alpha-tocopherol. In contrast to alpha-tocopherol extracted from plants, which is likewise called d-alpha-tocopherol, industrial synthesis creates dl-alpha-tocopherol. “it is manufactured from a mixture of toluene and 2,3,5-trimethyl-hydroquinone that reacts with isophytol to all-rac-alpha-tocopherol, utilizing iron in the presence of hydrogen chloride gas as driver. The response mix gotten is filtered and extracted with liquid caustic soda. Toluene is eliminated by evaporation and the residue (all rac-alpha-tocopherol) is purified by vacuum distillation.” specification for the ingredient is >> 97% pure. This synthetic dl-alpha-tocopherol has roughly 50% of the strength of d-alpha-tocopherol. Producers of dietary supplements and fortified foods for people or domesticated animals convert the phenol form of the vitamin to an ester utilizing either acetic acid or succinic acid due to the fact that the esters are more chemically steady, attending to a longer shelf-life. The ester types are de-esterified in the gut and taken in as totally free alpha-tocopherol. (4 ).

Function

Vitamin E has the following functions:.

  1. It is an anti-oxidant. This suggests it safeguards body tissue from damage caused by substances called complimentary radicals. Free radicals can damage cells, tissues, and organs. They are thought to contribute in certain conditions associated with aging.
  2. It assists keep the immune system strong against viruses and bacteria.
  3. It assists form red blood cells and expand blood vessels to keep blood from thickening inside them.
  4. It assists the body usage vitamin k.
  5. Cells also use vitamin E to interact with each other. It helps them perform lots of crucial functions.

Whether vitamin E can prevent cancer, heart problem, dementia, liver illness, and stroke still needs further research study. (5 ).

Food sources

Vitamin E is found in plant-based oils, nuts, seeds, fruits, and veggies.

  • Wheat bacterium oil
  • Sunflower, safflower, and soybean oil
  • Sunflower seeds
  • Almonds
  • Peanuts, peanut butter
  • Beet greens, collard greens, spinach
  • Pumpkin
  • Red bell pepper
  • Asparagus
  • Mango
  • Avocado (6 )

Mechanism of action

The system of action for the majority of vitamin E’s results are still unidentified. Vitamin E is an antioxidant, preventing free radical responses with cell membranes. Though in many cases vitamin E has actually been revealed to have pro-oxidant activity.

One mechanism of vitamin E’s antioxidant effect remains in the termination of lipid peroxidation. Vitamin E responds with unsteady lipid radicals, producing steady lipids and a relatively steady vitamin E radical. The vitamin E radical is then reduced back to steady vitamin E by response with ascorbate or glutathione. (7 ).

Benefits of vitamin E

Though vitamin E is often considered a single substance, it’s actually a group of eight fat-soluble substances with powerful antioxidant results.

Of these eight chemical types, alpha-tocopherol finest meets the dietary requirements of humans.

Vitamin E exists naturally in particular foods, including seeds, nuts, some vegetables, and some fortified items. You can also take it as a dietary supplement.

It plays lots of roles in your body. It’s possibly best known for its antioxidant results, safeguarding your cells from oxidative damage by neutralizing hazardous molecules called free radicals. In addition, it’s required for appropriate immune function and cellular signaling.

That’s why it’s not surprising that research suggests taking vitamin E supplements may benefit your health in numerous ways.

This article covers 8 potential advantages of vitamin E.

Might reduce markers of oxidative stress and enhance antioxidant defenses

Oxidative stress is a condition that happens when there’s an imbalance between your body’s antioxidant defenses and the production and accumulation of substances called reactive oxygen species (ros). This can lead to cellular damage and increased disease threat.

Due to the fact that vitamin E serves as an effective anti-oxidant in the body, studies have actually revealed that supplementing with high doses of it can reduce markers of oxidative stress and increase antioxidant defenses in some populations.

For example, a 2018 study in 54 individuals with diabetic nephropathy– kidney damage brought on by high blood sugar level– found that supplementing with 800 iu of vitamin E daily for 12 weeks considerably increased levels of glutathione peroxidase (gpx) compared with a placebo.

Gpx is a group of antioxidant enzymes that safeguard your cells from oxidative damage.

A 2021 study likewise showed that supplementing with a mix of vitamin E and vitamin c daily for 8 weeks decreased markers of oxidative stress, such as malondialdehyde and ros, in females with endometriosis.

Might decrease cardiovascular disease risk factors

Having high blood pressure and high levels of blood lipids such as ldl (bad) cholesterol and triglycerides may increase your danger of developing heart problem.

Promisingly, research recommends that vitamin E supplements may help reduce heart problem threat elements such as these in some individuals.

A 2019 evaluation of 18 studies discovered that, compared with placebo treatments, vitamin E supplements significantly decreased systolic but not diastolic high blood pressure– the top and bottom numbers of blood pressure readings, respectively.

Some research studies likewise show that taking vitamin E with omega-3 supplements might minimize ldl and triglyceride levels in individuals with metabolic syndrome– a cluster of conditions, including high blood fat levels, that increases the risk of heart problem and other health conditions.

May benefit those with nonalcoholic fatty liver disease (nafld)

Nafld includes a variety of conditions that trigger an accumulation of fat in the liver in people who drink little or no alcohol.

According to research study findings, vitamin E supplements may improve some aspects of health in individuals with nafld.

A 2021 evaluation of 8 studies found that supplementing with vitamin E minimized levels of the liver enzymes alanine aminotransferase (alt) and aspartate aminotransferase (ast), reduced blood lipid levels, and improved liver health in people with nafld.

Elevated ast and alt levels can indicate liver inflammation and damage in people with nafld, so lower levels agree with.

Might assist manage dysmenorrhea

Dysmenorrhea is a condition characterized by serious and regular menstrual pain, such as cramps and pelvic discomfort.

Promisingly, research recommends vitamin E supplements might lower discomfort in females with this condition.

In a 2018 research study in 100 females with dysmenorrhea, taking 200 iu of vitamin E everyday relieved menstrual pain more than a placebo. The results were even better when the vitamin was integrated with an omega-3 supplement consisting of 180 mg of epa and 120 mg of dha.

Furthermore, a 2021 research study showed that supplementing with a combination of vitamin E and vitamin c daily for 8 weeks helped in reducing the intensity of pelvic pain and dysmenorrhea in females with endometriosis.

Other potential health benefits

Vitamin E supplements have also been linked to several other health advantages:.

May advantage skin health. Vitamin E supplements may be helpful for those with certain skin disorders, such as eczema. However, research study is presently restricted, and more research studies are needed to get more information about this possible advantage.

May advantage cognitive health. Maintaining ideal vitamin E levels and taking supplements might assist protect versus cognitive decline. However it’s still unclear whether the supplements benefit individuals with cognitive conditions like alzheimer’s illness.

May benefit older grownups. Due to the fact that vitamin E plays important functions in health, such as reducing swelling and improving immune function, supplements might benefit individuals who have actually increased requirements or do not get enough in their diet plans, such as some older adults.

May improve lung function. Research studies have revealed that vitamin E supplements might enhance lung function and specific signs of asthma in children and grownups. (8 ).

Role of vitamin E in pregnancy

Vitamins play essential roles in female health. They are vital for lots of functions, consisting of menstruation and ovulation, oocyte (egg) quality and maturation. Vitamin E was first discovered in 1922 as a compound essential for recreation. It has actually become widely referred to as an effective lipid-soluble antioxidant. There are numerous reports on the advantages of vitamin E on health in general. Vitamin E assists your body develop and preserve red blood cells, healthy skin, eyes and strengthens your natural body immune system. Nevertheless, in spite of it being initially discovered as a vitamin necessary for reproduction, to date studies connecting to its results in this area are lacking. Vitamin E supplementation might help in reducing the risk of pregnancy problems involving oxidative stress, such as pre-eclampsia. This chapter is written to offer a review of the recognized roles of vitamin E in pregnancy. (9 ).

Skin health benefits of vitamin E for males

While it might be rare for men to have a vitamin E deficiency, this hasn’t stopped a number of them from scooping up skin care products containing it (including our effective firming serum). Here is why a growing number of men are including vitamin E into their day-to-day skin care routine.

Anti-aging

Are you starting to reveal signs of crow’s feet? Vitamin E protects skin cells from complimentary radicals, which assists decrease signs of aging. This holds true whether you take in foods rich in vitamin E or use it topically.

In fact, vitamin E is frequently used in sun blocks and everyday moisturizers for men due to its photoprotective homes. Research shows that alpha-tocopherol, the primary naturally taking place isomer in vitamin E, can possibly avoid dna cell damage from uv rays (see claim: “topical application of alpha-tocopherol (alphath), the most popular naturally taking place kind of vitamin E, hinders ultraviolet (uv) b-induced photocarcinogenesis and dna photodamage in c3h mice in vivo”.).

Injury recovery

There has been a substantial quantity of anecdotal evidence that vitamin E can accelerate wound healing and possibly decrease acne scars. While there isn’t much in the method of medical proof on vitamin E’s function in injury healing, research study does recommend that keeping skin hydrated is crucial to decreasing the appearance of scars (see claim: “the discovery that a moist environment actively supports the healing response when compared to a dry environment highlights the importance of water and good hydration levels for optimum recovery.”).

Guy who slather on lotion consisting of vitamin E may be seeing a decrease in scarring merely because they are hydrating their skin frequently. Utilizing an everyday males’s moisturizer can help you achieve similar skin care benefits by smoothing out imperfections and safeguarding your face from sun damage.

Battles acne

Guy tend to have oilier skin compared to ladies, which can result in extreme acne breakouts. If you’re questioning whether vitamin E can help you control your breakouts, the answer is perhaps.

There are some research studies which suggest that a diet abundant in vitamin E (in addition to vitamin a and zinc) can help in reducing acne symptoms. Nevertheless, studies on how vitamin E can benefit acne patients are limited and undetermined.

With research studies being so restricted, vitamin E isn’t advised as a standalone service to acne. Instead, guys are far better off utilizing an acne treatment system created for their skin. (10 ).

What can vitamin E do for hair?

Vitamin E has natural antioxidant results that might assist to preserve hair growth.

People have declared that vitamin E offers several advantages for hair health, however much of these claims lack rigorous clinical proof to back them up.

Most of the claims about vitamin E’s role in hair health associate with its antioxidant homes. These concentrate on the concept that it can decrease cell damage and enhance hair development.

We examine a few of the most common claims below.

Could assist support a healthy scalp

Vitamin E might assist support a healthy scalp and hair as it has natural antioxidant effects that might help with keeping hair development.

The vitamin’s antioxidant homes could help in reducing the amount of oxidative tension and free radicals that trigger the hair roots cells in an individual’s scalp to break down.

Help prevent hair loss

There is some limited proof to support the claim that vitamin E can help avoid loss of hair.

A little research study using an overall of 38 volunteers experiencing loss of hair examined the function that vitamin E played in preventing this loss. The study found that a person of the components of vitamin E did enhance the hair growth of the volunteers compared with a placebo.

More research study is still essential to identify how vitamin E affects loss of hair.

Increased shine

According to some individuals, vitamin E can assist renew shine that the hair loses as a result of damage. Chemicals, heat, and other styling items can all damage the hair.

A person can bring back shine using oils, which offer an additional layer of protection to the skin and hair. Many makers will add vitamin E to their products to help restore shine.

There is restricted research study on how reliable vitamin E is at making the hair shinier again. (11 )

Eye benefits of vitamin

Almonds and other nuts are outstanding sources of natural vitamin E.

Research study suggests vitamin E may help reduce the worsening of age-related macular degeneration (amd) amongst people who reveal early signs of the eye disease.

In the age-related eye illness research study (areds) involving nearly 5,000 individuals, participants with early amd had a 25 percent lower danger of developing innovative stages of the disease when taking an everyday dietary supplement containing vitamin E. The areds supplement included 400 global systems (iu) of vitamin E, in addition to high levels of vitamin a (as beta-carotene), vitamin c and zinc.

Based upon areds and other dietary research studies, lots of optometrist suggest that their patients supplement their diet plan with a day-to-day multivitamin which contains as much as 400 iu of vitamin E in combination with other antioxidants as part of their preventative eye care.

Some research studies recommend vitamin E also might contribute in avoiding cataracts:.

In a big, long-term study of more than 3,000 grownups (ages 43 to 86) in wisconsin, five-year danger for cataracts was 60 percent lower among individuals who reported utilizing multivitamins or any supplement including vitamin E or vitamin c for more than ten years, compared to nonusers.

In a 2008 research study that evaluated the dietary consumption of more than 35,000 female health professionals, women whose diets (consisting of supplements) had the highest levels of lutein and vitamin E had a lower relative danger of cataracts than females whose diet plans remained in the most affordable 20 percent for levels of these nutrients.

However, a current research study of apparently healthy older males in the united states failed to reveal any benefit of vitamin E supplements in the avoidance of cataracts.

More than 11,000 guys ages 50 and older (african-american individuals) or 55 and older (all other individuals) took a daily vitamin E supplement (400 iu of dl-alpha-tocopherol) or a placebo tablet for approximately 5 and a half years. At the end of the research study duration, there was no substantial difference in the variety of cataract medical diagnoses or cataract surgical treatments carried out amongst individuals of the two groups.

It appears more research study is required to fully comprehend the potential eye advantages of vitamin E– especially in regards to whether vitamin E supplements can reduce the risk of cataracts. (12 ).

Vitamin E deficiency

Vitamin E shortage brought on by a diet plan low in vitamin E is common in establishing countries. In developed nations, the cause is typically an absorption condition. Some infants are born with vitamin E deficiency, which typically improves with supplements.

  • Vitamin E deficiency might trigger impaired reflexes and coordination, trouble walking, and weak muscles.
  • Premature babies with the deficiency might establish a serious kind of anemia.
  • The medical diagnosis is based upon signs and outcomes of a physical examination.
  • Taking vitamin E supplements corrects the deficiency.

Vitamin E (tocopherol) is an antioxidant: it protects cells versus damage by totally free radicals, which are by-products of normal cell activity and which participate in chemical reactions within cells. Some of these responses can be hazardous.

Vitamin E, like vitamins a, d, and k, is a fat-soluble vitamin, which liquifies in fat and is best absorbed when eaten with some fat. Good sources of vitamin E include vegetable oils, nuts, seeds, green leafy veggies, and wheat germ.

Newborns have a fairly low reserve of vitamin E due to the fact that only percentages of vitamin E cross the placenta. Thus, babies, particularly early newborns, are at increased risk of vitamin E shortage. Nevertheless, with age, threat reduces since infants typically get enough vitamin E in breast milk or in business formulas. Grownups can keep large quantities of vitamin E in fat tissue, making the deficiency less likely.

Causes of vitamin E shortage

A very low fat diet plan does not have vitamin E, due to the fact that vegetable oils are the main source of this vitamin and because vitamin E is best taken in when consumed with some fat. Disorders that hinder fat absorption (such as particular liver disorders, gallbladder conditions, pancreatitis, and cystic fibrosis) can also minimize the absorption of vitamin E and increase the danger of vitamin E shortage.

In the united states and other industrialized nations, vitamin E shortage is unusual amongst older kids and adults and is usually due to.

  • A condition that hinders fat absorption (malabsorption condition)
  • In developing countries, the most typical cause of vitamin E shortage is
  • Insufficient consumption of vitamin E

Signs of vitamin E deficiency

In children, signs might consist of sluggish reflexes, difficulty strolling, loss of coordination, loss of position sense (understanding where the limbs are without taking a look at them), and muscle weakness.

In adults with vitamin E shortage due to a malabsorption condition, these signs rarely develop since adults keep large quantities of vitamin E in fat (adipose) tissue.

Vitamin E deficiency can trigger a form of anemia in which red blood cells rupture (hemolytic anemia). Premature infants who have a vitamin E shortage are at threat of this serious condition.

In premature babies, bleeding (hemorrhage) might happen within the brain, and blood vessels in the eyes may grow unusually (a disorder called retinopathy of prematurity). Impacted babies likewise have weak muscles. (13 ).

Vitamin E side effects

Get emergency situation medical assistance if you have any of these indications of an allergic reaction to vitamin E: hives; hard breathing; swelling of your face, lips, tongue, or throat.

Stop taking vitamin E and call your medical professional at the same time if you have:.

  • Headache, lightheadedness, vision modifications;
  • A light-headed sensation, like you may lose consciousness;
  • Uncommon weak point or exhausted feeling;
  • Diarrhea, stomach cramps; or
  • Easy bruising or bleeding (nosebleeds, bleeding gums).

Typical vitamin E side effects may include:.

  • Queasiness;
  • Worn out sensation
  • Headache; or
  • Moderate rash. (14 )

Dose and preparation

The recommended dietary allowance (rda) for vitamin E is 15 mg. The majority of vitamin E supplements offer around 67 mg of the nutrient, which is much greater than the rda. Those requiring a vitamin E supplement likely have actually an identified vitamin E deficiency, which is much more suitable for the 60 to 75 mg each day dosage provided in a supplement. Big dose vitamin E supplements must be approached with care and discussed with your physician ahead of time.

Vitamin E supplements are offered in two types: synthetic and natural. The natural form of vitamin E is alpha-tocopherol while the artificial kind is di-alpha-tocopherol. Both work well, however, a larger dosage of the artificial kind is needed to attain similar outcomes. You can also find vitamin E supplements containing both types of alpha-tocopherol, called blended tocopherols. (15 ).

Interactions

Use of some drugs can affect your vitamin E levels. Possible interactions include:.

Alkylating agents and anti-tumor antibiotics. There’s issue that high dosages of vitamin E might affect making use of these chemotherapy drugs.

Anticoagulants and anti-platelet drugs, herbs and supplements. Use of vitamin E with these drugs, herbs and supplements to decrease blood clotting may increase the danger of bleeding.

Cytochrome p450 3a4 (cyp3a4) substrates. Use caution when taking vitamin E and other drugs impacted by these enzymes, such as omeprazole (prilosec, zegerid).

Statins and niacin. Taking vitamin E with statins or niacin, which may benefit people with high cholesterol, could minimize niacin’s result.

Vitamin k. Taking vitamin E with vitamin k may reduce the effects of vitamin k. (16 ).

What are cautions and safety measures for vitamin E?

Warnings

This medication includes vitamin E. Do not take aquasol e, alpha-tocopherol, or tocopherol if you dislike vitamin E or any components included in this drug.

Stay out of reach of kids. In case of overdose, get medical aid or get in touch with a poison control center right away. (17 ).

Conclusion

Vitamin E was first used as a supplement in canada by the physicians shute and shute; based on the positive outcomes it attained, they began utilizing it frequently in their practices. Ever since, properly designed speculative and medical studies have advanced gradually and increased our knowledge of vitamin E. The antioxidative properties of vitamin E have been discovered to play a crucial role in the battle versus various diseases such as atherosclerosis, oxidative stress, cancer, cataract and ad, among others.

This evaluation concentrated on the important functions of vitamin E in some illness; in addition to these, this vitamin has actually been found to be effective against asthma, allergic reactions and diabetes, among others. Conversation of the dietary sources, rda and the interaction of vitamin E supplements with other dietary elements, has actually shown the need for and significance of vitamin E in the human context. Hence, raising public awareness of the function of dietary anti-oxidants in keeping much better health would benefit a variety of lives.

Apart from the massive benefits reported, there has always been debate about the exact function of vitamin E and its function in numerous illness. There are lots of conflicting reports of positive and unfavorable outcomes on the very same biological activities in the literature. The primary barrier in determining the functions of vitamin E in human health is the lack of verified biomarkers for vitamin E intake and status, which would help to relate consumption to possible medical results. In conclusion, although the information surrounding vitamin E is contradictory, the present literature appears to support the view that the benefits outweigh the side-effects. (18 ).

Referrals

  1. Https://www.cancer.gov/publications/dictionaries/cancer-terms/def/vitamin-e
  2. Https://www.webmd.com/vitamins/ai/ingredientmono-954/vitamin-e
  3. Https://www.karger.com/article/abstract/343106
  4. Https://en.wikipedia.org/wiki/vitamin_e
  5. Https://medlineplus.gov/ency/article/002406.htm
  6. Https://www.hsph.harvard.edu/nutritionsource/vitamin-e/
  7. Https://go.drugbank.com/drugs/db00163
  8. Https://www.healthline.com/health/all-about-vitamin-e#58.-other-potential-health-benefits
  9. Https://www.intechopen.com/chapters/76117
  10. Https://www.tiege.com/blogs/news/what-are-the-benefits-of-vitamin-e-for-men
  11. Https://www.medicalnewstoday.com/articles/322836
  12. Https://sinchewoptics.com.sg/blogs/news/vitamin-e-benefits-for-your-eyes-and-vision
  13. Https://www.msdmanuals.com/home/disorders-of-nutrition/vitamins/vitamin-e-deficiency
  14. Https://www.drugs.com/vitamin_e.html
  15. Https://www.verywellfit.com/vitamin-e-supplements-what-you-need-to-know-90042
  16. Https://www.mayoclinic.org/drugs-supplements-vitamin-e/art-20364144
  17. Https://www.rxlist.com/consumer_vitamin_e_aquasol_e_tocopherol/drugs-condition.htm
  18. Https://www.ncbi.nlm.nih.gov/pmc/articles/pmc3997530/
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