Why nutrients matter to follicles
Hair follicle matrix cells divide rapidly, so they are sensitive to nutrition. A review of vitamins A, B, C, D and E, iron, selenium and zinc concluded that micronutrients play an important, but not entirely clear, role in follicle development and immune function [1].
Deficiency versus supplements
The same review notes that deficiencies may be a modifiable risk factor in hair loss, and that large placebo-controlled trials are still needed to show whether supplementation helps people with both a deficiency and hair loss [1]. In other words, fixing a real deficiency makes sense; taking everything just in case does not.
More is not always better
Excess intake of some nutrients, such as vitamin A and selenium, has been linked to hair loss, which is another reason to avoid high-dose supplements without advice [1].
A sensible plan
If you are shedding, ask your doctor about blood tests such as iron studies, vitamin D and thyroid function. Eat regular meals with enough protein. Keep your scalp in good condition while you sort out the inside; at Folli-Heal Plus we look after the outside with a 15-step scalp programme, and we will suggest seeing a doctor if your history points that way.
Want a closer look at your scalp?
Folli-Heal Plus starts every course with a magnified scalp analysis at The Starling Mall, PJ. We explain what we see, then plan sessions with you.
Results vary from person to person.
FAQ
Should I take biotin for hair loss?
Biotin deficiency is uncommon, and evidence for biotin in people who are not deficient is limited [1]. High-dose biotin can also interfere with some lab tests, so tell your doctor if you take it.
Which blood tests are useful?
Doctors often check iron stores, vitamin D and thyroid function in people with diffuse shedding.
Can diet alone fix thinning?
Correcting a deficiency can help, but pattern hair loss has genetic and hormonal drivers that diet does not change.
References
- Almohanna HM, Ahmed AA, Tsatalis JP, Tosti A. The Role of Vitamins and Minerals in Hair Loss: A Review. Dermatol Ther (Heidelb). 2019;9(1):51-70. PubMed 30547302 · PMC6380979
This article is general information, not medical advice. If hair loss is sudden, patchy or comes with other symptoms, see a doctor.