According to evolutionary biologists, hair is more than just a biological feature; it is a secondary sexual trait deeply tied to an individual’s self-esteem and psychological well-being. Alopecia (i.e. hair loss) is a distressing condition that affects people of all ages. While alopecia and general hair follicle health are influenced by heredity, hormonal changes, medical conditions and normal aging, emerging evidence suggests that diet and nutrition also have a profound effect on the health of your hair. A systemic review published in August 2025 looked at the role that diet and nutrients play in hair health and this is what the researchers found:
- Excessive consumption of sugary drinks (>3500 ml/week) substantially increases hair loss.
- Alcohol consumption is associated with both increased hair loss and premature hair depigmentation.
- Low vitamin D levels are associated with greater severity of both alopecia areata (an autoimmune form of hair loss) and androgenetic alopecia (pattern baldness).
- High intake of retinol (vitamin A) is linked to a greater severity of alopecia areata.
Click here to learn more underlying reasons of hair loss and hair thinning.
SOURCE: https://journals.sagepub.com/doi/10.1177/02601060251367206
Dr. Ardyce Yik ND 