What to eat for healthy and strong hair

The relationship between diet and hair health

Imagine having a high-precision, always-on laboratory capable of deciphering the most intimate secrets of your health. A silent ally that, 24 hours a day, seven days a week, records every slight hormonal variation and every subtle metabolic change. This laboratory exists, and we wear it: it is our hair, a discreet but extraordinarily eloquent narrator of our well-being.

Today, medicine reveals a fascinating truth: hair is much more than an aesthetic frame. It is a faithful witness to what happens inside us. Each strand reflects not only beauty, but also our nutritional, hormonal, and emotional balance. Therefore, diet has become an essential piece for healthy, strong, and luminous hair. No cosmetic achieves what conscious nutrition can build from within.

Essential vitamins and minerals for hair

Hair beauty is largely sculpted thanks to micronutrients and biofunctional active ingredients that act from within, influencing the growth cycle, strength, and shine of the hair. 

Today, beyond vitamins and minerals, nutraceuticals have become true allies in hair beauty routines, backed by studies confirming their effectiveness. These are some of the most relevant:

• Iron: Vital for transporting oxygen to hair follicles. Its deficiency is one of the most frequent causes of diffuse hair loss, especially in women. However, it is not necessary to supplement it if blood levels are correct, as an excess could be harmful.
• Zinc: Involved in cell regeneration and hormonal balance, crucial aspects for maintaining healthy hair.
• Biotin (Vitamin B7): Key in the synthesis of keratin, the structural protein of hair. However, the general population does not usually suffer from biotin deficiency, so it is not necessary to supplement it in high doses or above usual recommendations. In fact, its excess may be related to the appearance of acne breakouts in some people.
• Vitamin D: Related to the anagen (growth) phase of the hair follicle. Low levels are associated with various forms of hair loss. Although Spain is a sunny country, in many cases there is a deficiency of this vitamin, making its analytical control important.
• Selenium: Powerful antioxidant that protects follicles from oxidative damage.
• Vitamin C: Key in the production of collagen and in the absorption of iron from the diet, contributing to stronger and more resistant hair.

Nutraceuticals: are active ingredients, generally of natural origin, isolated or concentrated from foods that, administered in precise doses, exert a beneficial effect on physiological functions, helping to maintain health, prevent disorders or complement treatments.

And in the universe of nutricosmetics, innovative active ingredients that strengthen hair health stand out today:

• AnaGain™: Pea sprout extract rich in phytonutrients, with studies demonstrating its ability to stimulate the anagen phase and reduce hair loss.
• Astaxanthin: A high-potency antioxidant, capable of combating oxidative stress in follicles, protecting hair health and vitality.
• Ashwagandha: Adaptogen with cortisol-regulating effects. Contributes to reducing the impact of stress, a known trigger of hair loss.
• Hydrolyzed Keratin: Provides essential amino acids that nourish the hair fiber from within, improving hair resistance and shine.
  

Science shows us that hair beauty is not just an aesthetic matter, but a reflection of inner balance and well-being. And today, more than ever, nutrients and functional active ingredients are indispensable allies in the art of showing off healthy and radiant hair.

Foods that strengthen hair from within

Beauty and health are literally served daily on your plate. To achieve strong and radiant hair, include these foods in your diet:

• Fatty fish (salmon, sardines, mackerel): Source of omega-3 fatty acids, high-quality protein, and vitamin D.
• Eggs: Rich in biotin and high-quality protein. The egg is considered the standard protein because it contains the essential amino acids that the body needs and cannot obtain through diet.
• Leafy green vegetables (spinach, kale): Provide iron, vitamin C, and antioxidants.
• Nuts (walnuts, almonds): Rich in zinc, selenium, magnesium, and healthy fats, as well as vitamin E.
• Legumes (lentils, chickpeas, soybeans): Excellent in iron, which with vitamin C will facilitate absorption, and easily complementary plant proteins to obtain first-class protein.
• Citrus fruits and red berries: High in vitamin C, flavonoids, anthocyanins.
• Shellfish and lean meats: Bioavailable sources of iron and zinc.
• Whole grains: Rich in B vitamins, essential minerals, and fiber.

How to incorporate these nutrients into your daily diet

• Opt for oily fish 2-3 times a week to nourish your hair from within.
• Include a daily handful of nuts, perfect for hair... and for skin.
• Enjoy at least 5 daily servings of fruits and vegetables, with an emphasis on leafy green vegetables. Remember that pea sprouts are rich in phytonutrients, biotin, L-arginine, and isoflavones, which is why AnaGain™ Nu is one of the components of our Hair Boost hair supplement.
• Alternate sources of animal and plant protein: legumes are wonderful for health and hair.
• Combine iron-rich foods with vitamin C to maximize their absorption (for example, lentils with red pepper or spinach salad with strawberries).
• Fermented dairy products (yogurt, kefir), by strengthening the intestinal barrier and modulating the microbiota, can play a key role in hair health from within.
• Hydration, always. Hair health also depends on adequate water intake.

Is it useful to take hair supplements?

The market is flooded with promising supplements, but caution is advised. These products can be useful during seasonal changes, hypocaloric diets, periods of stress, as complements to androgenetic alopecia treatment, or when taking GLP-1 medications like Ozempic, but remember that they do not replace a balanced diet. Also remember that sometimes, even if we believe in a nutritional approach that prioritizes food, modern agricultural practices have reduced the nutritional density of our foods, leading many people not to cover their needs for essential micronutrients, hence the benefits of controlled supplementation.

Recent studies indicate that the effectiveness of hair supplementation can vary depending on the cause of hair loss and the product's composition. While in some cases it is essential to cover specific nutritional deficiencies, in others, certain supplements with innovative formulas and clinically studied active ingredients can provide complementary benefits even without obvious deficiencies. The key is to choose quality products with scientific evidence, always adapted to each person's needs. Because in beauty and health, an intelligent, personalized, and safe approach is what matters.

Other keys to strong and healthy hair

• Keep stress under control: elevated cortisol can sabotage the hair cycle.
• Avoid extreme or restrictive diets, major enemies of hair.
• Pamper the scalp with gentle, specific products for your skin type. An In Out routine is a very effective treatment.
• Reduce the use of excessive heat (straighteners, dryers) and aggressive chemicals.
  

Consult a professional if you notice persistent hair loss or finer, brittle hair.

Hair health starts from within

Your hair speaks for you. It reflects your health, your diet, and your emotions. Nourishing it well is not just an aesthetic matter: it is investing in well-being and inner balance. Because true beauty always begins from within.

Each article is backed by the experience of our founder and CEO Dr. Modesta Cassinello, Doctor in Pharmacy and Diploma in Nutrition, committed to excellence in skin and hair care.