Can eating sugar cause acanthosis nigricans?
Acanthosis nigricans is a skin disorder in which dark, velvety skin appears in various body folds such as the armpits, neck, groin and over the joints of the fingers and toes. Eating too much sugar does not cause acanthosis nigricans. But, among other things, it may be the result of obesity or insulin resistance. Eating much of anything, including sugar, can lead to obesity. Now and then, acanthosis nigricans is the first outward sign of type 2 diabetes.
Please see your healthcare provider to learn and treat the underlying cause of this disorder.