A recent study in the Journal of the American Academy of Dermatology revisits the concerns held by patients and parents that chocolate aggravates acne. Dermatologists have downplayed this connection for years, but a small study of 54 college students suggests there way be some linkage between chocolate ingestion and acne.
http://www.jaad.org/article/S0190-9622(16)01395-5/fulltext
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