When you start experiencing hair loss, you might think: should I change my diet? Nutrition is something you have control over, and that feels good. But the honest question is: how much of a difference does it really make?
Short answer: it depends. For some men, nutrition plays a clear role. For others, hardly at all. And understanding that distinction is important.
Why nutrition can affect your hair
Your hair grows constantly. An average of one centimeter per month. That costs energy and building blocks: proteins, vitamins, minerals. All these substances are needed for hair follicles to function properly.
If you get enough of them, your hair doesn't consciously notice it. But if you don't get enough, your hair can notice. That's essentially how nutrition works for hair loss, as a foundation.
Which deficiencies can worsen hair loss?
There are a few deficiencies that are more common in people with more hair loss than average:
Iron
Iron helps transport oxygen to the hair follicles. A clear iron deficiency can increase hair loss. This is more often seen in vegetarians or people who eat little red meat. A blood test can reveal this, and then you'll also know if supplementation makes sense.
Zinc
Zinc is involved in cell division, including the production of new hair. A zinc deficiency can disrupt your hair's growth cycle. That doesn't mean you should immediately start taking zinc supplements. If you eat meat, nuts, and seeds regularly, you usually get enough.
Vitamin D
More than half of Dutch people have a vitamin D deficiency in winter. A link has been found between low vitamin D levels and increased hair loss. Whether supplementation truly helps everyone is unclear, but with a demonstrable deficiency, supplementing is logical.
Proteins
Hair largely consists of keratin, and keratin is a protein. If you consistently eat too little protein, it can eventually become visible in your hair. This is more common with strict diets or very unbalanced nutrition than with a normal eating pattern.
Can nutrition lower DHT?
DHT is the hormone that is the main culprit for most men with hereditary hair loss. And yes, some nutrients have a small inhibitory effect on the enzyme that converts testosterone into DHT.
Green tea (EGCG), pumpkin seeds, and certain phytoestrogens are sometimes mentioned. It sounds interesting, but the reality is sober: the effect is small and has not been convincingly demonstrated in large clinical studies in humans.
That said, there's no reason not to eat these things. If it has a small extra effect, that's a bonus. But don't count on it as a treatment.
What nutrition cannot do
This is the honest side of the story.
If your hair loss is hereditary, nutrition has little influence on the underlying problem. DHT remains DHT. Sensitive hair follicles remain sensitive. A perfect diet won't change that.
That doesn't mean it's pointless. A good diet ensures that your follicles can function optimally, even when they are under pressure. It's the difference between an engine with good oil and one without. The engine is the same, but the condition differs.
Where nutrition does play a clear role is in hair loss caused by deficiencies or stress. Telogen effluvium, the temporary hair loss that occurs with sudden stress, illness, or a calorie-restricted diet, can be directly linked to nutrition. In these cases, addressing your eating pattern can really make a difference.
What you can concretely do
If you seriously want to see if nutrition plays a role in your hair loss, this is a sensible step-by-step plan.
Get a blood test. Ask your doctor to check ferritin (iron storage), zinc, vitamin D, and possibly thyroid function. That's more concrete than buying supplements randomly.
Eat enough protein. Think eggs, fish, poultry, legumes. Not excessively, but make sure you don't get too little, especially if you're trying to lose weight.
Avoid crash diets. A sudden, large calorie reduction can trigger telogen effluvium, which becomes visible months later as increased hair loss. Slow and gradual weight loss is better for your hair.
Eat a varied diet. Vegetables, fruits, nuts, fatty fish. Not because one specific food will save your hair, but because a deficiency of multiple substances together can have a negative effect.
What does work for hereditary hair loss?
For men whose cause is hereditary, the options are researched and fairly clear.
Finasteride inhibits DHT production and is the most proven remedy for male hair loss. Minoxidil stimulates blood circulation to the follicles and extends the hair's growth phase. Both come with potential side effects, which many men dismiss. We previously wrote extensively about both.
In addition, there are ingredients such as Redensyl, Procapil, and Baicapil that directly address the hair follicle and can slow down hair loss. These can be found in the Hairborn Growth Serum, which is developed for men with early hair loss who prefer not to immediately resort to medication.
Adjusting nutrition can support. But if you want to actively do something about hereditary hair loss, you won't get far with it.
In short
Nutrition is not a solution for hereditary hair loss, but it's also not an irrelevant detail. Deficiencies in iron, zinc, vitamin D, or proteins can worsen hair loss, and these are worth checking.
Eat a varied diet, ensure sufficient protein, and if you have doubts about deficiencies: get a blood test. That's more concrete than a shelf full of supplements.
But don't expect miracles from nutrition alone. Addressing hair loss requires action at the level of the hair follicle itself. And for that part, there are now options that do work.