Several factors are likely to cause keratosis pilaris. Regarding diet, very few studies have been conducted on this subject and its role in the pathogenesis of keratosis pilaris is still poorly understood. However, it seems that this condition may to some extent be linked to an unbalanced diet. Indeed, a study showed an association between keratosis pilaris and a body mass index (BMI) greater than 25. For reference, a BMI greater than 25 is traditionally correlated with overweight. The study concluded that it is possible that insulin, the hormone that regulates blood sugar among other things, plays a role in the etiology of keratosis pilaris by stimulating follicular keratinization. However, it should be noted that this is only a hypothesis.
Furthermore, other scientists suggest the existence of a link between food allergies and the onset of keratosis pilaris. Indeed, they report the case of a teenager who developed keratosis pilaris following a reaction to wheat proteins. After the wheat proteins were eliminated from his body, the disappearance of the skin lesions was observed. In addition, the accidental ingestion of a wheat-based snack a few weeks later led to the reappearance of keratosis pilaris, seemingly confirming that there is a link between this condition and food allergies.
Finally, it is suggested that a deficiency in vitamin A or vitamin B12 may be the cause of keratosis pilaris, but the biological mechanisms at work are poorly understood. For your information, offal is the main source of vitamin A, although its precursor, pro-vitamin A, can be found in lemon, potatoes, and carrots. As for vitamin B12, it is mainly present in eggs, dairy products, and shellfish. If you think you are suffering from a vitamin deficiency and you wish to start a supplement regimen, the best course of action is to first discuss it with your doctor. They can advise you and guide you towards the supplementation that will best meet your needs.
Conclusion : It is challenging to determine the role of diet in the development of keratosis pilaris because the scientific evidence is still lacking. The only possible assertion is the following: to promote good skin health (and overall body health), it is recommended to adopt a varied and balanced diet, accompanied by regular physical activity.