While biotin is found naturally in foods like beef liver, eggs, salmon and sweet potato, a
food-first approach is always best. If these foods don’t regularly feature in your diet – for example, if you follow a
vegan lifestyle – it’s worth knowing that biotin is also available as a dietary supplement. Nutritionally speaking, biotin contributes to normal energy-yielding metabolism, helping your body turn the
protein, carbohydrates and fats you eat into
energy.
Biotin deficiency isn’t actually common. However, Dr Rajput says, “Low biotin levels have been linked to
hair thinning, increased shedding, brittle hair and ultimately hair loss. In these cases, restoring biotin intake may help improve overall hair quality, and it’s a supplement that I’d recommend. But biotin supplements are most effective when there’s an underlying deficiency.”