Hair, Skin, Nails

What to eat & avoid for healthy skin, hair & nails

5 min read

Article by Olivier Sanchez ND, NT Dip, Ir

Your hair, skin and nails are often the first places to show what’s going on inside your body. When you’re low in nutrients, stressed, or consuming too many processed foods, it can show up as dull skin, brittle nails or hair that feels thin and weak.

The good news? The secret to a radiant complexion, strong nails and luscious hair might just be on your plate. While topical treatments have their place, true beauty stems from within. The nutrients we consume form the very building blocks of our skin cells, hair follicles and nail beds. For example, hair is made mostly of protein, so getting enough amino acids, especially sulphur‑containing amino acids, is key for strong, glossy hair.

Let’s explore the powerhouse foods that can make you radiate from the inside out.

5 Powerhouse food groups for ultimate beauty

Think of these categories as your foundational beauty nutrition. Incorporating these will benefit your hair, skin and nails holistically.

1. Omega 3-rich foods: your internal hydrator

Omega 3 fatty acids are potent anti-inflammatories. They help manage skin conditions like dryness and eczema, keep the scalp healthy (reducing dandruff) and strengthen hair follicles while giving skin a supple, hydrated appearance.
Think chia seeds, flaxseeds, walnuts and hemp seeds. Sprinkle them on oats, blend into smoothies, or use as a salad topping. High-dose algae-derived omega 3s may also be considered.

2. Colourful fruits and vegetables

Packed with vitamins A, C, and E, plus antioxidants, they combat free radicals from pollution and UV exposure that cause premature ageing and dullness. Vitamin C is essential for collagen production.
Think sweet potatoes (rich in vitamin A for skin repair), bell peppers and berries (vitamin C for collagen), and leafy greens (iron and folate for hair growth).

3. Plant-based proteins

Hair and nails are primarily made of a protein called keratin. Adequate protein intake is non-negotiable for strength, growth and preventing brittleness.
Think lentils, chickpeas, tofu, tempeh, and quinoa. A consistent intake supports strong nail growth and hair. Discover the best protein sources on a plant-based diet.

4. Zinc and selenium sources

Zinc aids in skin healing, controls oil production and supports hair tissue growth. Selenium is a key antioxidant that helps protect skin elasticity.
Pumpkin seeds (a top zinc source), whole grains and Brazil nuts.

5. Hydration: water and water-rich foods

Hydration plumps skin cells, minimising fine lines, aids nutrient transport, and helps flush toxins. It directly impacts scalp health and hair’s moisture levels.
Water, of course! Plus, cucumbers, celery and watermelon.

3 Foods to limit for a clearer complexion and stronger strands

While balance is key, some foods can impact your beauty nutrition efforts.

High-glycaemic and refined sugars

These cause spikes in blood sugar and insulin, which may increase inflammation and oil production, potentially leading to breakouts. Sugar can also contribute to a process called glycation, which damages collagen and elastin, leading to premature wrinkles.

Ultra-processed foods (UPFs)

Often high in trans fats, salt, and gut-damaging additives, they can promote inflammation in the body, which may manifest as dull skin, puffiness, or aggravated conditions like psoriasis or eczema on the scalp and skin (by disturbing the gut microbiome and promoting increased intestinal permeability). Remember health and radiant skin begin in the gut. Continue learning about ultra-processed foods: dangers and how to avoid them.

Excessive alcohol

Alcohol is dehydrating, which can leave skin looking dry and tired. It also affects liver function and depletes vital nutrients like B-vitamins and zinc, which are essential for hair health and skin renewal.

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When diet needs support: targeted supplementation

Even with a stellar diet, modern life, stress, or individual needs can create nutritional gaps. This is where high-quality supplements can provide thoughtful, targeted support.

DRV+ (Formerly DR.VEGAN®) Omega: A robust algae-based Omega 3 supplement delivering the essential 150mg EPA and 300mg DHA needed for internal hydration and supporting a healthy scalp and glowing skin.

DRV+ Beauty Bundle: For comprehensive support, this bundle is your inner beauty toolkit. It combines targeted nutrients:

Hair Saviour®: Formulated with nutrients, including AnaGain™, biotin, vitamin C, silica, and several potent herbal extracts, this supplement directly supports keratin production, collagen synthesis, and overall strength, addressing hair thinning (and brittle nails) at their root cause.
Skin Saviour®: Contains hyaluronic acid, green tea extract, vitamin A, C, E, selenium and probiotics. This supplement helps build your body's collagen for clearer, healthier and glowing skin.

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By focusing on whole, plant-based foods and intelligently supplementing where needed, you support your body’s natural radiance. Remember, consistency is key. Nourish yourself and the glow will follow. You may enjoy reading ' The best foods for healthy hair, skin & nails' next.

Discover the DRV+ range of vegan-formulated supplements, designed to work in harmony with your plant-based lifestyle and help you reveal your most vibrant health.

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This article was written by

Olivier Sanchez ND, NT Dip, Ir

Olivier Sanchez is a registered naturopath and naturopathic nutritionist, an internationally published author, and the founder of Nutrunity. He specialises in digestive, metabolic, and mental well-being, with a key focus on gut health and sleep, helping individuals create sustainable routines that enhance energy, focus, and overall health.

Visit his website: www.nutrunity.com.

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References

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²Daniells, S. Hardy, G. (2010). Hair loss in long-term or home parenteral nutrition: Are micronutrient deficiencies to blame? Current Opinion in Clinical Nutrition and Metabolic Care. 13(6), pp. 690-697. doi:10.1097/MCO.0b013e32833ece02

³DRV+. (2024). Ultimate advice for hair loss, from an expert nutritionist. Available: https://drv.co/blogs/articles/nutritionist-advice-for-hair-loss. [Accessed 29 Jan. 2026]

⁴DRV+. (2024). 6 tips for healthy skin. Available: https://drv.co/blogs/articles/6-tips-for-healthy-skin. [Accessed 29 Jan. 2026]

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⁹Huang, TH. Wang, PW. Yang, SC. et al. (2018). Cosmetic and therapeutic applications of fish oil's fatty acids on the skin. Marine Drugs. 16(8), 256. doi:10.3390/md16080256

¹⁰Ogawa, Y. Kawamura, T. Shimada, S. (2016). Zinc and skin biology. Archives of Biochemistry and Biophysics. 611, pp. 113-119. doi:10.1016/j.abb.2016.06.003

¹¹Ogawa, Y. Kinoshita, M. Sato, T. et al. (2019). Biotin is required for the zinc homeostasis in the skin. Nutrients. 11(4), 919. doi:10.3390/nu11040919

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