A cousins wife purportedly ate nothing but chocolate according to my Aunt.
She looks fine, although in later life I think she may drink alcohol as much as she eats chocolate as she has a certain look about her, but it may be that I just see her in FB pictures these days, and has clearly had a lot of Botox/ filler work done, giving her an odd look, that I’d put down, probably uncharitably, to too much alcohol.
My own Aunt, was barely ever seen eating, and we always had to take food with us when visiting for the day, sandwiches and cakes, as her fridge was always empty, although she drove and I know visited her local Tesco, as I’d been with her when younger.
Alzheimers or something similar is affecting her now, so encourage people to eat.
My own Mother, eats meat or fish and vegetables every day, which she cooks, and is doing well at 90 years old.