Hair Care
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).
In fact, many nutritional deficiencies are linked to 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.
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, too much may be dangerous. Studies show that an overdose of 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.
You can also find vitamin A supplements online.
BOTTOM LINE:
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 and 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.
You can find B-vitamin supplements online.
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 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 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.
BOTTOM LINE:
Vitamin C is needed to make collagen and can help prevent hair from aging. Good sources include peppers, citrus fruits and strawberries.
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4. Vitamin D
Low levels of vitamin D are linked to alopecia, a technical term for hair loss (7Trusted Source).
Research also shows that vitamin D may help create new follicles — the tiny pores in the scalp where new hair can grow (8).
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 and 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 and fortified foods.
Vitamin D supplements are available online.
BOTTOM LINE:
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 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 (9Trusted Source).
The placebo group had only a 0.1% increase (9Trusted Source).
Sunflower seeds, almonds, spinach and avocados are all good sources of vitamin E.
You can also find vitamin E supplements online.
BOTTOM LINE:
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 (10Trusted Source, 11Trusted Source, 12Trusted Source, 13Trusted Source).
Foods high in iron include clams, oysters, eggs, red meat, spinach and lentils.
Iron supplements are available online.
BOTTOM LINE:
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 (14Trusted Source, 15Trusted Source).
Studies show zinc supplements reduce hair loss caused by zinc deficiency (16Trusted Source, 17Trusted Source).
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.
BOTTOM LINE:
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 (18Trusted Source, 19Trusted Source, 20Trusted Source).
However, actual protein deficiency is extremely rare in Western countries.
BOTTOM LINE:
Eating enough protein is important for hair growth, although a protein deficiency is rare in Western countries these days.
Should You Take a Hair Supplement?
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 (22Trusted 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 or not.
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.
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Like any other part of your body, hair needs a variety of nutrients to be healthy and grow (1Trusted Source).
In fact, many nutritional deficiencies are linked to 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.
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, too much may be dangerous. Studies show that an overdose of 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.
You can also find vitamin A supplements online.
BOTTOM LINE:
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 and 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.
You can find B-vitamin supplements online.
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 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 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.
BOTTOM LINE:
Vitamin C is needed to make collagen and can help prevent hair from aging. Good sources include peppers, citrus fruits and strawberries.
ADVERTISEMENT
Personalized vitamin packs that support your lifestyle
Take a fun quiz to get your customized, doctor-approved recommendations today.
4. Vitamin D
Low levels of vitamin D are linked to alopecia, a technical term for hair loss (7Trusted Source).
Research also shows that vitamin D may help create new follicles — the tiny pores in the scalp where new hair can grow (8).
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 and 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 and fortified foods.
Vitamin D supplements are available online.
BOTTOM LINE:
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 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 (9Trusted Source).
The placebo group had only a 0.1% increase (9Trusted Source).
Sunflower seeds, almonds, spinach and avocados are all good sources of vitamin E.
You can also find vitamin E supplements online.
BOTTOM LINE:
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 (10Trusted Source, 11Trusted Source, 12Trusted Source, 13Trusted Source).
Foods high in iron include clams, oysters, eggs, red meat, spinach and lentils.
Iron supplements are available online.
BOTTOM LINE:
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 (14Trusted Source, 15Trusted Source).
Studies show zinc supplements reduce hair loss caused by zinc deficiency (16Trusted Source, 17Trusted Source).
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.
BOTTOM LINE:
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 (18Trusted Source, 19Trusted Source, 20Trusted Source).
However, actual protein deficiency is extremely rare in Western countries.
BOTTOM LINE:
Eating enough protein is important for hair growth, although a protein deficiency is rare in Western countries these days.
Should You Take a Hair Supplement?
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 (22Trusted 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 or not.
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.
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Norton call
Norton USA
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