🦶 Dry Skin and Cracked Heels: Deficiency of Fat-Soluble Vitamins A, E and Omega-3
Why skin peels and heels crack — and what this has in common with vitamins and fats
Dry skin, peeling and cracked heels are common complaints. There are many causes: dry air, water, improper care, age. But nutrition plays an important role: the fat-soluble vitamins A and E and Omega-3 fatty acids participate in building the skin barrier and retaining moisture.
The skin is the largest organ, and its condition largely reflects what we eat. If the skin is dry even with good care, it is worth paying attention to a deficiency of these nutrients. Let's look at the role of each.
Why skin becomes dry
The skin protects itself from moisture loss with a lipid barrier — a layer of fats between the cells of the stratum corneum. When this barrier is weakened, moisture evaporates, the skin becomes dry, peels, and cracks appear in stressed areas (heels).
Vitamin A: cell renewal
Vitamin A (retinol and its precursors) is critical for the skin: it participates in cell renewal, healing and maintaining the barrier. Its deficiency can cause dry skin, peeling and "chicken skin" (follicular hyperkeratosis).
Vitamin E: antioxidant and barrier
Vitamin E is a fat-soluble antioxidant. It protects membrane and skin lipids from oxidation, supporting the barrier and hydration. Vitamin E is often added to creams, but its dietary level matters too.
Omega-3: the lipid layer
Omega-3 fatty acids (especially EPA and DHA) participate in building cell membranes and the skin barrier. Their sufficiency helps the skin retain moisture and reduce inflammation. Omega-3 deficiency can contribute to dry skin.
Other causes of dryness and cracks
Vitamin deficiency is not the only cause. Possible factors:
| Cause | Comment |
|---|---|
| Dry air/water | Heating, hard water, hot shower |
| Care | Aggressive products, lack of moisturizing |
| Age | With age the skin barrier weakens |
| Diseases | Thyroid, diabetes, eczema, psoriasis |
| Deficiencies | A, E, Omega-3, zinc, essential fats |
Food sources and norms
What to add to your diet for the skin:
| Nutrient | Sources | Norm/day |
|---|---|---|
| Vitamin A (retinol) | Liver, eggs, dairy | ~900 mcg (men), ~700 mcg (women) |
| Beta-carotene (provitamin A) | Carrots, pumpkin, sweet potato | Part of the A need |
| Vitamin E | Almonds, sunflower seeds, oils | ~15 mg |
| Omega-3 (EPA+DHA) | Salmon, mackerel, sardines | ~250–500 mg/day |
Practical recommendations
A comprehensive approach to dry skin:
Moisturize the skin
Creams with ceramides and humectants, especially after a shower.
Gentle heel care
Pumice, moisturizing products with urea, but without aggression.
Omega-3 and fats
Fatty fish twice a week or quality Omega-3 supplements.
Vitamins A and E from food
Vegetables, nuts, oils, organ meats — without supplement megadoses.
Water and protection
Drink enough water, protect the skin from wind and dry air.
Which deficiency causes dry skin?
Most often a lack of vitamin A, vitamin E, Omega-3, as well as zinc and essential fatty acids.
Does vitamin A help with dry skin?
Yes, vitamin A participates in skin cell renewal. With deficiency, the skin becomes dry and peels.
Does Omega-3 help with dry skin?
Omega-3 integrate into cell membranes and help the skin retain moisture, supporting the barrier.
Why are cracked heels dangerous?
Deep cracks can become infected. With painful or non-healing cracks, a dermatologist is needed.
Which foods are good for the skin?
Fatty fish, carrots, nuts, seeds, vegetable oils, greens.
How much Omega-3 for the skin?
Usually about 250–500 mg of EPA+DHA per day (fatty fish twice a week).
Can vitamin A be overdone?
Yes, vitamin A accumulates and is toxic in excess. Get it from food and carotenoids; supplements as prescribed.
Why is skin dry even with care?
Possible nutrient deficiencies, age, dry air or diseases. A comprehensive approach and a doctor matter.
Vitamin E — take or apply?
Useful both in creams and in the diet (nuts, oils). Dietary sufficiency matters.
What are the norms for vitamins A and E?
Vitamin A ~700–900 mcg/day, vitamin E ~15 mg/day for adults.