What Vitamins For Hair Growth

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what vitamins for hair growth? Vitamins are essential for the proper functioning of the body. They are made up of organic compounds that are required to support various processes.

Some vitamins have been shown to improve hair growth and strengthen your hair. The best vitamin supplements for hair growth include:

Vitamin B complex: This vitamin complex contains eight different vitamins (including B1, B2, B3, B5, and B6). It helps stimulate hair growth by increasing blood flow to the scalp.

Vitamin C: Vitamin C is an antioxidant that helps prevent premature aging of the skin and hair follicles as well as reduce inflammation.

Vitamin E: This vitamin plays an important role in cell growth and regeneration. It also protects your hair from damage caused by free radicals.

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What Vitamins For Hair Growth

Many people view healthy-looking hair as a sign of health or beauty. Like any other part of your body, hair needs a variety of nutrients to be healthy and grow (1Trusted Source).

Many nutritional deficiencies cause hair loss.

While factors such as age, genetics, and hormones also affect hair growth, optimal nutrient intake is key. Below are 5 vitamins and 3 other nutrients that may be important for hair growth.

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1. Vitamin A

All cells need vitamin A for growth. This includes hair, the fastest growing tissue in the human body.

Vitamin A also helps skin glands make an oily substance called sebum. Sebum moisturizes the scalp and helps keep hair healthy (2Trusted Source).

Diets deficient in vitamin A may lead to several problems, including hair loss (3Trusted Source).

While it’s important to get enough vitamin A, you don’t want too much. Studies show that too much vitamin A can also contribute to hair loss (4Trusted Source).

Sweet potatoes, carrots, pumpkins, spinach, and kale are all high in beta-carotene, which is turned into vitamin A.

Vitamin A can also be found in animal products such as milk, eggs, and yogurt. Cod liver oil is a particularly good source.

SUMMARY

Your hair needs vitamin A to stay moisturized and grow. Good sources include sweet potatoes, carrots, spinach, kale, and some animal foods.

2. B vitamins

One of the best-known vitamins for hair growth is a B vitamin called biotin. Studies link biotin deficiency with hair loss in humans (5Trusted Source).

Although biotin is used as an alternative hair loss treatment, those who are deficient have the best results. However, deficiency is very rare because it occurs naturally in a wide range of foods. There’s also a lack of data about whether biotin is effective for hair growth in healthy individuals.

Other B vitamins help create red blood cells, which carry oxygen and nutrients to the scalp and hair follicles. These processes are important for hair growth.

You can get B vitamins from many foods, including:

  • whole grains
  • almonds
  • meat
  • fish
  • seafood
  • dark, leafy greens

Additionally, animal foods are the only good sources of vitamin B12. So if you’re following a vegetarian or vegan diet, consider taking a supplement.

BOTTOM LINE

B vitamins help carry oxygen and nutrients to your scalp, which aids in hair growth. Whole grains, meat, seafood, and dark, leafy greens are all good sources of B vitamins.

3. Vitamin C

Free radical damage can block the growth and cause your hair to age. Vitamin C is a powerful antioxidant that helps protect against the oxidative stress caused by free radicals (6Trusted Source).

In addition, your body needs vitamin C to create a protein known as collagen — an important part of the hair structure.

Vitamin C also helps your body absorb iron, a mineral necessary for hair growth.

Strawberries, peppers, guavas, and citrus fruits are all good sources of vitamin C.

SUMMARY

Vitamin C is needed to make collagen and can help prevent hair from aging. Good sources include peppers, citrus fruits, and strawberries.

4. Vitamin D

Low levels of vitamin D are linked to alopecia, a technical term for hair loss (7Trusted Source).

Vitamin D is thought to play a role in hair production, but most research focuses on vitamin D receptors. The actual role of vitamin D in hair growth is unknown.

That said, most people don’t get enough vitamin D. It may still be a good idea to increase your intake.

Your body produces vitamin D through direct contact with the sun’s rays. Good dietary sources of vitamin D include:

  • fatty fish
  • cod liver oil
  • some mushrooms
  • fortified foods

SUMMARY

Vitamin D’s actual role in hair growth is not understood, but one form of hair loss is linked to deficiencies. You can increase vitamin D levels through sun exposure or by eating certain foods.

5. Vitamin E

Similar to vitamin C, vitamin E is an antioxidant that can help prevent oxidative stress.

In one study, people with hair loss experienced a 34.5% increase in hair growth after supplementing with vitamin E for 8 months (8Trusted Source).

The placebo group had only a 0.1% increase (8Trusted Source).

Sunflower seeds, almonds, spinach, and avocados are all good sources of vitamin E.

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SUMMARY

Vitamin E helps prevent oxidative stress and boost hair growth. Good dietary sources include sunflower seeds, almonds, spinach, and avocados.

6. Iron

Iron helps red blood cells carry oxygen to your cells. This makes it an important mineral for many bodily functions, including hair growth.

Iron deficiency, which causes anemia, is a major cause of hair loss. It’s especially common in women.

Foods high in iron include clams, oysters, eggs, red meat, spinach, and lentils.

SUMMARY

Iron deficiency is a major cause of hair loss, especially in women. The best sources of iron include clams, oysters, eggs, red meat, spinach, and lentils.

7. Zinc

Zinc plays an important role in hair tissue growth and repair. It also helps keep the oil glands around the follicles working properly.

Hair loss is a common symptom of zinc deficiency. Studies show resolving zinc deficiency with supplementation may reduce deficiency-related hair loss

However, there are some anecdotal reports that supplementing with too high of a dose can also contribute to hair loss.

For this reason, it may be better to get your zinc from whole foods. Foods high in zinc include oysters, beef, spinach, wheat germ, pumpkin seeds, and lentils.

SUMMARY

The mineral zinc can improve hair growth in people who are deficient in it. Good sources include oysters, beef, and pumpkin seeds.

8. Protein

Hair is made almost entirely of protein. Consuming enough is important for hair growth.

Animal studies show that protein deficiency may decrease hair growth and even lead to hair loss (17Trusted Source).

However, actual protein deficiency is extremely rare in Western countries.

SUMMARY

Eating enough protein is important for hair growth, although a protein deficiency is rare in Western countries these days.

The bottom line

Food is the best source of the vitamins you need for hair growth. However, if you fail to get enough in your diet, supplements may be helpful. According to research, supplements work best in individuals who are already deficient (19Trusted Source).

Furthermore, large doses of vitamins and minerals can be harmful if you aren’t deficient. So work with a doctor to determine if you have a deficiency.

At the end of the day, the best way to get these nutrients is by eating a balanced, real-food–based diet that includes plenty of nutrient-dense foods.

Some of the best foods for hair growth are foods that have high nutritional value like eggs, leafy greens, and fatty fish. Deficiencies in nutrients can affect hair health.

What is the effect of nutritional deficiency on hair?

Many people want strong and healthy hair, especially as they grow older.

However, how fast it grows and how healthy it depends on many factors including age, overall health, genetics, environmental exposure, medications, and diet.

Although you can’t change some factors like age and genetics, one factor you likely have more control over is your diet.

Vitamins and minerals from food play an important role in the hair follicle growth cycle and in cellular turnover (1Trusted Source).

Consuming a diet lacking the right nutrients can lead to hair loss.

Studies suggest deficiencies in vitamins B12 and D, biotin, riboflavin, iron, and other nutrients are associated with hair loss (1Trusted Source).

Eating a balanced diet that is rich in these vitamins and minerals may help promote hair growth, especially if you’re experiencing hair loss due to poor nutrition.

While more research is needed to understand the connection between micronutrients and hair loss, it’s a good idea to ensure you’re getting enough of these 13 foods rich in nutrients that support hair growth.

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1. Eggs

Eggs are a great source of protein and biotin, two nutrients that are essential for hair growth.

Eating adequate protein is important for hair growth because hair follicles are mostly made of protein. A lack of protein in the diet has been shown to promote hair loss (2Trusted Source).

Biotin is essential for the production of a hair protein called keratin, which is why biotin supplements are often marketed for hair growth. Research has also shown that consuming more biotin can help improve hair growth in people with a biotin deficiency (3).

However, biotin deficiencies are uncommon if you consume a balanced diet. There is little evidence to show people who have limited or no health issues benefit from consuming more biotin (1Trusted Source).

Furthermore, consuming high amounts of biotin can interfere with laboratory results used to diagnose and manage a wide range of conditions (4Trusted Source).

While you are unlikely to consume excess biotin through food, many supplements for hair, skin and nail growth contain biotin in excess of the recommended daily intake (1Trusted Source).

Eggs are also a great source of zinc, selenium, and other hair-healthy nutrients. This makes them one of the best foods to consume for optimal hair health (5Trusted Source).

SUMMARY

Eggs are a great source of protein and biotin, which are important for hair health and growth. A deficiency in either of these nutrients has been linked to hair loss.

2. Berries

Berries are loaded with beneficial compounds and vitamins that may support hair growth.

This includes vitamin C, which has strong antioxidant properties.

Antioxidants can help protect hair follicles against damage from harmful molecules called free radicals. These molecules exist naturally in the body and the environment.

For example, 1 cup (144 grams) of strawberries provides an impressive 85 milligrams or up to 113% of your daily vitamin C needs (9Trusted Source).

Also, the body uses vitamin C to produce collagen, a protein that helps strengthen hair to prevent it from becoming brittle and breaking.

What’s more, vitamin C helps the body absorb iron from the diet. Low iron levels may cause anemia, which has been linked to hair loss.

SUMMARY

Berries are loaded with compounds like antioxidants and vitamins that may support hair growth. For
example, strawberries are rich in vitamin C, which aids collagen production and iron absorption, two factors that may promote hair growth.

3. Spinach

Spinach is a healthy green vegetable that’s loaded with beneficial nutrients like folate, iron, and vitamins A and C, all of which are important for hair growth

Studies suggest vitamin A is important for hair growth. But supplementing with too much vitamin A can lead to hair loss.

You should be able to get all the vitamin A you need by eating foods rich in this important nutrient.

A cup (30 grams) of spinach provides up to 20% of your daily vitamin A needs (13Trusted Source).

Spinach is also a great plant-based source of iron, which is essential for hair growth. Iron helps red blood cells carry oxygen throughout the body to fuel your metabolism and aid growth and repair.

What’s more, iron deficiencies have been linked to hair loss.

SUMMARY

Spinach is loaded with folate, iron, and vitamins A and C, which are important for hair growth. A deficiency
in these nutrients may result in hair loss.

4. Fatty fish

Fatty fish like salmon, herring, and mackerel have nutrients that may promote hair growth.

They are excellent sources of omega-3 fatty acids, which have been linked to hair growth in several studies.

An older study in 120 women found that taking a supplement containing omega-3 and omega-6 fatty acids as well as antioxidants reduced hair loss and increased hair density (20Trusted Source).

However, there are only a handful of studies on omega-3 fatty acids and hair growth. More studies are needed before health experts can make any recommendations.

Fatty fish is also a great source of protein, selenium, vitamin D3, and B vitamins, nutrients that may help promote strong and healthy hair (21Trusted Source).

Interestingly, studies have linked vitamin D3 deficiency to hair loss.

While it is still unclear if low vitamin D leads to hair loss, it’s a good idea to include fatty fish and other sources of vitamin D regularly in your diet.

SUMMARY

Fatty fish like salmon, herring, and mackerel are great sources of omega-3 fatty acids, which may support improved hair growth and density. However, there are only a few studies in this area, so more are needed. Fatty fish is also one of few food sources of vitamin D, which may be important for hair growth.

5. Sweet potatoes

Sweet potatoes are a great source of beta-carotene. The body converts this compound into vitamin A, which is linked to hair health.

A medium sweet potato (about 114 grams) contains enough beta carotene to provide up to 160% of your daily vitamin A needs (25Trusted Source).

Research has shown that vitamin A can affect the production of sebum, which helps keep hair healthy (26Trusted Source).

Vitamin A deficiency can lead to hair loss (27Trusted Source).

However, too much vitamin A can cause hair loss as well.

Aim to meet your needs by eating vitamin-A–rich foods like sweet potatoes and avoiding too much supplementation.

SUMMARY

Sweet potatoes are loaded with vitamin A, which is important for hair growth and affects sebum production.

6. Avocados

Avocados are delicious, nutritious, and a great source of healthy fats.

They are also an excellent source of vitamin E, which may support hair growth. One medium avocado (about 200 grams) provides 28% of your daily vitamin E needs (28Trusted Source).

Like vitamin C, vitamin E is an antioxidant that helps prevent oxidative stress by neutralizing free radicals.

Some studies have found lower levels of vitamin E in people with hair loss, but the evidence is conflicting (14Trusted Source).

In one older study, people with hair loss experienced 34.5% more hair growth after taking a vitamin E supplement for 8 months (29Trusted Source).

Vitamin E also protects areas of the skin, like the scalp, from oxidative stress and damage. Damaged skin on the scalp can result in poor hair quality and fewer hair follicles

SUMMARY

Avocados are rich in vitamin E. This antioxidant helps prevent oxidative stress that may lead to hair loss.

7. Nuts

Nuts are tasty, convenient, and contain a variety of nutrients that are important for hair growth.

For example, an ounce (28 grams) of almonds provides an impressive 48% of your daily vitamin E needs (32Trusted Source).

What’s more, they also provide a wide variety of B vitamins, zinc, and essential fatty acids. A deficiency in any of these nutrients has been linked to hair loss (1Trusted Source, 20Trusted Source).

Nuts have also been linked to a wide variety of other health benefits besides hair growth, including reduced inflammation and a lower risk of heart disease (33Trusted Source).

This makes nuts an excellent and easy addition to your diet.

SUMMARY

Nuts are packed with nutrients like vitamin E, B vitamins, zinc, and essential fatty acids, all of
which are important for hair growth and are linked to many other health benefits.

8. Seeds

Seeds are rich in nutrients with relatively few calories. Many of these nutrients are also important for hair growth. These include vitamin E, zinc, and selenium.

An ounce (28 grams) of sunflower seeds provides nearly 50% of your daily vitamin E needs, with a wide variety of hair-healthy B vitamins (34Trusted Source).

What’s more, certain seeds like flaxseeds and chia seeds also provide omega-3 fatty acids.

Two tablespoons of ground flaxseed provide 4.7 grams of omega-3 fatty acids. That’s more omega-3 fatty acids than half a fillet (178 grams) of salmon.

However, flaxseeds provide a type of omega-3 fatty acid that is not used by the body as efficiently as the omega-3s found in fatty fish. Nonetheless, they are a great addition to the diet.

To get the widest variety of nutrients, it’s best to consume a mixture of seeds.

SUMMARY

Like nuts, seeds are rich in vitamin E and other nutrients that may promote hair growth. Some seeds
also contain omega-3s, which have been linked to hair growth.

9. Sweet peppers

Sweet peppers are an excellent source of antioxidant-rich vitamin C, which may support hair growth.

In fact, one yellow pepper provides up to 456% of the daily vitamin C needs of women and 380% for men.

Vitamin C helps promote collagen production, which can help strengthen your hair strands. It’s also a powerful antioxidant, which may protect hair strands against oxidative stress.

Oxidative stress occurs when free radicals overwhelm the body’s antioxidant defense system. It has been linked to hair loss and the graying of hair (31Trusted Source).

What’s more, sweet peppers are also an excellent source of vitamin A (36Trusted Source).

This vitamin is important for hair growth and affects the production of sebum, which helps keep hair healthy.

SUMMARY

Sweet peppers are a rich source of vitamins A and C, two nutrients that help ensure hair stays healthy and that may aid hair growth.

10. Oysters

Oysters are one of the best food sources of zinc. One medium oyster provides up to 96% of daily zinc needs for women and 75% of daily zinc needs for men (38Trusted Source).

Zinc is a mineral that helps support the hair growth and repair cycle

A lack of zinc in the diet may promote telogen effluvium, a common but reversible form of hair loss caused by a lack of nutrients in the diet (41Trusted Source).

Studies have shown that taking a zinc supplement may reverse the effects of hair loss caused by a zinc deficiency.

However, taking too much zinc can cause toxicity. That’s why getting zinc from foods like oysters may be better than taking supplements since foods provide zinc in small but healthy doses (2Trusted Source).

SUMMARY

Oysters are one of the best sources of zinc in the diet. This mineral helps support the hair growth and repair cycle.

11. Beans

Beans are a great plant-based source of protein, which is essential to hair growth.

Like oysters, beans are a good source of zinc, which aids the hair growth and repair cycle. A 3.5-ounce (100-gram) serving of black beans provides up to 14% of a woman’s daily zinc needs and 10% for men (42Trusted Source).

They also provide many other hair-healthy nutrients, including iron, biotin, and folate (43Trusted Source).

On top of all these benefits, beans are highly versatile and inexpensive, which makes them an easy addition to the diet.

SUMMARY

Beans are a great source of protein, iron, zinc, and biotin, which are all essential for optimal hair health. Together, they may support hair growth.

12. Soybeans

Studies have shown that compounds in soybeans may promote hair growth. One of these compounds is spermidine, which is abundant in soybeans (44, 45Trusted Source).

For example, a study of 100 people found that a spermidine-based nutritional supplement prolonged a phase of active hair growth called the anagen phase. The longer a hair follicle stays in the anagen phase, the longer it will grow (46Trusted Source).

Other studies suggest spermidine may promote human hair growth (47).

However, the research on spermidine and hair growth is fairly new, so more studies are needed before health experts can make recommendations on spermidine intake.

SUMMARY

Soybeans are one of the best sources of spermidine, a compound that may prolong the active phase of
hair growth.

13. Meat

Meat is a staple in many people’s diets and is rich in nutrients that may aid hair growth.

The protein in meat aids growth and helps repair and strengthen hair follicles. A 3.5-ounce (100-gram) serving of cooked sirloin steak provides as much as 29 grams of protein (48Trusted Source).

Red meat, in particular, is rich in a type of iron that’s easy to absorb. This mineral helps the red blood cells deliver oxygen to all cells in the body, including hair follicles

However, it’s important to note that the overconsumption of red meat, especially processed red meat, has been linked with an increased risk of cardiovascular disease, colorectal cancer, and type 2 diabetes in men and women. (49Trusted Source)

Deficiencies in protein and iron have been linked to hair loss

SUMMARY

Meat is a great source of protein, which is essential for healthy, strong hair. Red meat, in particular, is rich in easy-to-absorb iron, which may aid hair growth.

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The bottom line

What you eat can affect the health of your hair.

A lack of the right nutrients, including vitamins A, C, D, and E, zinc, B vitamins, iron, biotin, protein, and essential fatty acids, may slow down hair growth or even cause hair loss.

Fortunately, correcting a deficiency in any of these nutrients may help treat hair loss and promote the rate of hair growth.

If you think you’re lacking any of these nutrients, try adding some of the above foods to your diet.

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Frequently Asked Questions (FAQs)

which vitamin grows hair?

Some key vitamins that are essential for hair growth include biotin, vitamin A, vitamin C, and vitamin E.

how much biotin supplement for hair growth?

There is no set amount of biotin that is recommended for hair growth. However, a general rule of thumb is to take between 25-100 micrograms per day. Speak with your doctor to find the right dosage for you.

are prenatal vitamins good for hair growth?

Some people believe they do. The main benefit of prenatal vitamins is that they contain high levels of iron and other nutrients that are important for pregnant women and their babies. If you are looking for a vitamin supplement that may help with hair growth, try taking a multivitamin that contains biotin.

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