Prurigo Pigmentosa A Report Of Two Patients In Possible Association With Essential Fatty Acid Deficiency Prurigo

This case report examines two young men (ages 19 and 22) who developed a distinctive itchy skin rash called prurigo pigmentosa while following restrictive diets. Both patients were on very low-carbohydrate and low-fat diets - one following a ketogenic diet and the other using fat burners along with his restricted eating plan. The rash appeared as red, itchy bumps on their chest and back that eventually left behind a net-like pattern of darker pigmentation.

The researchers successfully treated both patients by modifying their diets and prescribing tetracycline antibiotics. This suggests that the skin condition was directly related to their extreme dietary restrictions. While prurigo pigmentosa has previously been linked to ketosis (when the body burns fat for fuel instead of carbohydrates), not everyone in ketosis develops this rash, indicating other factors are involved.

The authors propose that the combination of very low carbohydrate and very low fat intake may have created an essential fatty acid deficiency. Essential fatty acids are crucial fats that our bodies cannot produce on their own and must obtain from food. When people severely restrict both carbs and fats simultaneously, they may not get enough of these vital nutrients, potentially affecting skin health and triggering inflammatory skin conditions.

This case highlights the importance of balanced nutrition even when following specialized diets for metabolic health. At VALIA Health, this research reinforces our approach of carefully monitoring patients who choose ketogenic or other restrictive eating patterns, ensuring they maintain adequate essential fatty acid intake while pursuing their metabolic health goals.