How does diet affect the skin? What to eat for healthy skin

When we talk about beautiful skin, we usually think first of creams, serums, scrubs or cosmetic treatments. But truly healthy skin – radiant, smooth and supple – starts much deeper than the skin's surface. It is a mirror of the condition of our body. How we eat, how our digestion works and how many micronutrients and vitamins we get – all of this is reflected in our face.

Every cell, including skin cells, depends directly on the building and protective components it receives through the blood. If the diet lacks important nutrients or they are out of balance, the skin reacts with dryness, rashes, dullness, inflammation and premature ageing.

So if we want skin that is not only beautiful but also healthy, we have to start from the inside – with what we put on our plate.

HOW DOES A POOR DIET HARM YOUR SKIN?

A lack of antioxidants and skin-protecting vitamins

If your diet is dominated by processed food, fast food or sugar, your body has fewer antioxidants to neutralise free radicals – the main culprits of skin ageing. Free radicals are formed by sunlight, stress and air pollution, and if you lack vitamins C, E or A, the skin becomes more vulnerable.

An inflammatory diet promotes pimples, redness and eczema

Many modern foods – sugary drinks, white bread, fried food – have a high glycaemic index, which causes blood sugar spikes. These spikes increase insulin production, which in turn stimulates sebaceous gland activity and inflammation – a common cause of acne. Such a diet can also worsen existing skin conditions such as rosacea, psoriasis and atopic dermatitis.

Hormonal balance is disrupted

Food directly affects the hormonal system. Sugar, dairy products or too much animal fat in particular can affect androgen levels (e.g. testosterone), which are also linked to acne. Diet-related hormonal fluctuations often cause breakouts on the lower part of the face – the chin and jawline.

Disturbed gut = problem skin

Research has shown that there is a gut-skin axis – a strong link between the condition of the digestive system and the appearance of the skin. If there is an imbalance in the gut (e.g. due to antibiotics, stress or food intolerances), inflammation, rashes, redness and even itching can appear.

WHAT TO EAT FOR RADIANT, RESILIENT SKIN

Fortunately, we can have a positive effect on our skin simply by changing our daily eating habits. The right food is a powerful weapon against inflammation, ageing and dryness. Here are the foods that should be on your plate:

Healthy fats – protecting the skin from dryness and inflammation

Fats are needed not only for energy but also for skin cell membranes. Without them the skin becomes thin, rough and vulnerable.

Where to find healthy fats:

• Omega-3 fatty acids – in oily fish (salmon, sardines, mackerel), flaxseed and chia seeds. They reduce inflammation, strengthen the skin barrier and help protect against acne and atopic dermatitis flare-ups;
• Avocados – rich in monounsaturated fats, they improve skin suppleness and reduce redness;
• Nuts and seeds (especially almonds, walnuts and sunflower seeds) – an excellent source of vitamin E.

Vitamins – essential for skin vitality and renewal

• Vitamin A (carrots, spinach, liver) – promotes skin cell renewal and improves acne-prone skin;
• Vitamin C (oranges, kiwis, broccoli) – a powerful antioxidant, essential for collagen synthesis – the protein responsible for skin firmness;
• Vitamin E (vegetable oils, seeds, almonds) – protects against oxidative stress and helps retain moisture in the skin;
• Vitamin D – produced in sunlight, but often lacking in winter. Its deficiency is linked to increased inflammation and skin conditions;
• B vitamins – especially B2, B3 and B7 (biotin) – essential for radiant, hydrated, flake-free skin.

Protein – the building material of the skin

Without enough protein, the skin cannot renew itself, heal or produce collagen. So it is important to get:

• Animal protein – lean meat, fish, eggs;
• Plant protein – lentils, chickpeas, beans, tofu.

Hydrolysed collagen supplements taken periodically are also recommended – several studies have confirmed their effect on skin elasticity and hydration.

Antioxidants – protecting cells from ageing

The more antioxidants, the stronger the skin's protection against UV rays, stress and pollution:

• Blueberries, cranberries, blackcurrants – rich sources of flavonoids;
• Green tea – contains catechins that improve microcirculation in the skin;
• Turmeric and ginger – powerful natural anti-inflammatory compounds.

Water – hydration from within

Without enough water, the skin becomes pale and dull, dries out and develops fine lines. It is recommended to drink 1.5–2 litres of water a day, depending on body weight, activity level and air temperature.

WHAT TO AVOID: FOODS THAT HARM YOUR SKIN

• Refined sugar – promotes glycation, in which sugar binds to collagen fibres and stiffens them, speeding up wrinkle formation;
• White flour and sugary drinks – act as "fuel for inflammation" and can cause breakouts;
• Processed fats (trans fats) – weaken cell membranes and hinder skin regeneration;
• Alcohol – strongly dehydrates, dilates capillaries, causes redness and puts extra strain on detoxification.

YOUR SKIN FEEDS ON WHAT YOU EAT

The condition of your skin is a direct reflection of how your whole body is doing. No miracle product or cream can make up for a poor diet. But the good news is that even a small change in your diet can bring a lasting, healthy result: less inflammation, more radiance, a healthier skin structure and a more resilient skin barrier.

Start with a simple decision: more water, fish and vegetables, and less sugar. Your skin will thank you – with a bright, lively glow.

Our recommendation. For very dry, chapped skin, choose A+E vitamin ointment.

SOURCES

1. "The Gut-Skin Connection: How Diet Affects Skin Health" – Harvard Health Publishing
2. "Nutrition and Skin: Lessons for Anti-Aging, Beauty and Healthy Skin" – National Institutes of Health (NIH)
3. "Foods for Healthy Skin" – American Academy of Dermatology
4. "The Role of Omega-3 Fatty Acids in Skin Health" – Healthline
5. "How Sugar Impacts Your Skin" – Cleveland Clinic
6. "Top Anti-Inflammatory Foods for Skin" – Medical News Today

# balanced diet # healthy skin