7 Nutrients You Should Eat Daily For Long, Healthy Hair

Contributing Food Editor By Liz Moody
Contributing Food Editor
Liz Moody is a food editor, recipe developer and green smoothie enthusiast. She received her creative writing and psychology degree from The University of California, Berkeley. Moody is the author of two cookbooks: Healthier Together and Glow Pops and the host of the Healthier Together podcast.
Expert review by Abby Cannon, J.D., R.D., CDN
Registered Dietitian
Abby K. Cannon, JD, RD is an attorney turned dietitian who lives a very low waste lifestyle. She graduated from the University of Pennsylvania with a degree in psychology and received her law degree from Brooklyn Law School cum laude. She graduated from Queens College and became a registered dietitian in 2016.
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Having long, healthy hair begins on the inside. In the same way that what you eat can affect your complexion, it can affect your hair growth. Hair is mostly created from the protein keratin, which is made up of amino acids. When we eat foods or take supplements abundant in these, they are broken down in our bodies, and then eventually reformed into hair cells.

"The nourishment of hair depends on the nutrients supplied from our diet and on the intake of oxygen from the air," explains Lucy Vincent, founder of sans[ceuticals], an award-winning clean hair care line. "The health of growing hair depends wholly on what we eat and break down in the bloodstream and the circulation of blood to the scalp, which may be improved by massage." Here are seven nutrients you should eat daily for your hair:

1. MSM

MSM is a sulfur that is naturally present in our bodies, as well as in certain plants. "It supports collagen and keratin, fundamental building blocks for skin, hair, and nails," explains Vincent.* "It is particularly high in the amino acid cysteine, a key element responsible for maintaining skin and hair tissue.* It also supports wound healing and is generally great for healthy skin, hair, bones, and connective tissue."* MSM-rich foods include cabbage, broccoli, cauliflower, kale, asparagus, onions, and garlic.

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2. Protein

Protein is essential for many functions in the body. Muscle mass tends to get the most attention, but it's essential in hair growth and health as well. "Because hair is constructed mostly of protein [keratin], a diet of too little protein can advance the loss of pigment, causing grayness," Vincent says. "A diet rich in high-quality, naturally occurring protein will do wonders for your hair."* You can find protein-rich foods like Greek yogurt, egg yolks, kale, peanuts, beans, peas, lentils, tofu, chicken, and turkey.

3. Zinc

Zinc helps hair via a few different pathways: growth, repair, and oil production in the scalp. "Supporting tissue growth and repair, zinc helps keep your scalp and hair healthy," Lucy explains.* "It also regulates hormones in the body [testosterone included] and helps maintain production of oil-secreting glands on the scalp that help your hair grow."* The latter is important because an unbalanced scalp can lead to inflammation; inflammation, in turn, leads to hair thinning. Zinc-rich foods include chickpeas, wheat germ, oysters, beef, veal liver, and roast beef.

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4. B vitamins

Perhaps the most famous of the hair supplements is biotin. It's amassed a following thanks to a large body of both anecdotal and research-backed benefits.* "Biotin, niacin, and cobalamin are among the most popular B-complex vitamins that help support shine and thickness to hair strands," says Lucy.* Too little biotin can cause brittle hair and may lead to hair loss. She recommends eating B-vitamin-rich foods like whole grains, eggs, avocados, yeast, liver, and legumes. They're also a very common addition to hair-healthy supplements.*

5. Omega-3s

Omega-3 fatty acids are nourishing, inside and out.* "The essential nutrients reach both the hair shaft and the cell membranes in your scalp, nourishing the follicles and promoting healthy hair growth," says Lucy.* "Plus, they add elasticity to your hair, preventing breakage and some hair loss."* The body can't produce omega 3-fatty acids on its own, so it is vital to eat a diet rich in flaxseeds, walnuts, salmon, tuna, kale, Brussels sprouts, and small, fatty fish like anchovies.

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6. Selenium

"Selenium is a trace element that helps the body make selenoproteins, which maintain reproduction, metabolism, DNA synthesis, and immunity.* It also supports hair follicles to encourage new growth.* Scrimp on selenium and you risk hair-follicle abnormalities, reduced growth, and hair loss." However, there's also evidence to suggest that too much of this element will lead to brittle, damage-prone hair. The recommended amount is 400 mcg a day for optimal results. Selenium-rich foods include Brazil nuts, tuna, halibut, shrimp, and sardines.

7. Collagen

Collagen powder is often hailed for its gut- and skin-supporting benefits.* It should be equally praised for supporting hair health.* Collagen is especially high in the amino acid proline, which is the primary amino acid in keratin.* It is also thought to contribute to improved scalp health as well as help manage oxidative stress.*

grass-fed collagen+
★ ★ ★ ★ ★
★ ★ ★ ★ ★
(4.9)

grass-fed collagen+

The ultimate trifecta: Beauty enhancer, gut-healer & protein booster.*

grass-fed collagen+

The ultimate trifecta: Beauty enhancer, gut-healer & protein booster.*

★ ★ ★ ★ ★
★ ★ ★ ★ ★
(4.9)
grass-fed collagen+

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