Nutrition and strong hair: the key nutrients your diet shouldn't be missing

Nutrition for hair: why what you eat shows

Hair grows from the follicle, a structure that needs energy, protein, vitamins and minerals to work normally. That's why nutrition for hair is one of the simplest foundations to look after from the inside. There's no miracle food, but there is a way of eating that helps your body get the nutrients it needs.

In this guide we go over the key nutrients, where to find them and when it might make sense to consider a supplement. And if you notice significant changes in your hair, we explain when it's worth seeking professional help.

Protein: the raw material of hair

Hair is mainly made of keratin, a protein. If your diet provides little protein, your body has fewer resources available. Regularly include eggs, fish, lean meat, legumes, tofu, dairy or nuts, according to your preferences and the way you eat.

Spreading protein across the day's meals is usually more practical than concentrating it in one. If you follow a vegetarian or vegan diet, combining legumes, whole grains and seeds will help you get a varied profile.

A practical tip: if you eat little protein because you're short on time, prepare cooked legumes, hard-boiled eggs or canned fish in water ahead of time, so covering your meals is easy.

Zinc and selenium: minerals with authorised claims

Zinc contributes to the maintenance of normal hair, and so does selenium. You'll find them in shellfish, meat, eggs, legumes, pumpkin seeds and nuts such as Brazil nuts, which are very rich in selenium (no need to overdo them).

More isn't always better: minerals have safe intake limits, so it's best not to exceed the recommended doses of any supplements you take.

How you cook also matters: very long cooking or very high temperatures can reduce some of the vitamins in food, so alternate raw, steamed, grilled and gently baked dishes.

Biotin and B vitamins

Biotin also contributes to the maintenance of normal hair. It's found in eggs, liver, nuts, seeds and whole grains. Other B vitamins are involved in energy metabolism and are found in whole grains, legumes, leafy greens and animal products.

If you want to go deeper, we have a dedicated article on B vitamins for hair on our blog.

Healthy fats, iron and antioxidant vitamins

The healthy fats in oily fish, extra virgin olive oil, avocado and nuts are part of a balanced eating pattern that also benefits the scalp and skin. Colourful fruit and vegetables, rich in vitamins C and E, complete the plate.

Iron deserves a special mention: deficiency is relatively common, especially in women, and only a blood test can confirm it. Don't take iron supplements on your own; check with your doctor first.

Hydration counts too: drinking water throughout the day is part of healthy habits in general, along with sleeping well and managing stress, factors that influence the condition of your hair.

A sample plate for everyday life

A simple way to organise yourself is the plate method: half vegetables, a quarter protein (fish, egg, legumes or lean meat) and another quarter whole grains or tubers, with a drizzle of olive oil. Add fruit and a handful of nuts mid-morning or mid-afternoon.

Avoid skipping meals regularly and be wary of very restrictive or “detox” diets, which can leave your nutrient intake short for weeks.

When a food supplement can help

A supplement doesn't replace a varied diet, but it can be a support when your diet doesn't cover everything. Evocapil Plus Hair Nutrient Complex combines zinc, selenium and biotin, nutrients that contribute to the maintenance of normal hair. Use it following the dose shown on the label.

If you're also looking for a general well-being supplement, VitalizeNature Shilajit Original + Ashwagandha is an option some people include in their routine; remember it's not meant to replace a balanced diet and that you should consult a professional if you take medication or have any health condition.

Keep in mind that the results of any change in habits are gradual: hair grows slowly, so it's worth keeping up the routine for several months before assessing how you feel.

When to see a professional

Nutrition is just one factor among many: stress, hormonal changes, certain medications or thyroid disorders also play a role. If hair loss is intense, sudden, patchy or comes with other symptoms, see a dermatologist or doctor so they can assess your case with tests and an examination.

Frequently asked questions about nutrition for hair

What foods are good for hair?

Eggs, fish, legumes, nuts, seeds and leafy greens provide protein, zinc, selenium and other vitamins and minerals. Variety is what matters: no single food replaces a balanced diet maintained over time.

How much protein does hair need?

Hair is made mostly of keratin, a protein, so it's a good idea for your diet to include varied protein sources throughout the day. Needs vary from person to person, so if you have doubts, it's best to ask a healthcare professional.

Do very restrictive diets affect hair?

Very low-calorie diets or diets that cut out food groups can leave your nutrient intake below what you need. If you notice more hair loss than usual after changing your diet, see a doctor or dermatologist before continuing with it.

Are supplements useful if I already eat well?

Food supplements don't replace a varied diet. Biotin and zinc contribute to the maintenance of normal hair and can be considered as support when your diet doesn't cover everything. Always follow the recommended dose on the label.

When should I see a doctor about hair loss?

If hair loss is intense, sudden, appears in specific areas or comes with other symptoms such as marked tiredness, itching or scalp inflammation, see a dermatologist or doctor. Nutrition is just one of several possible factors.