What evidence do you have that you did not have visceral fat when you were skinny? Did you have an MRI, or even a bioimpedance scan?Tarmander said:This is an interesting issue. As someone who used to be skinny ... Just saying that visceral fat is bad for you, is probably too simplistic.
There is a profound correlation between diabetes and increased visceral fat, regardless of how apparently "skinny" the person is.
http://raypeat.com/articles/articles/diabetes.shtml
Gaining visceral fat, such as the fat in a fatty liver, is deadly regardless of context. Visceral fat grows through inflammation (while other fat grows through hypertrophy). There can be 5-20 pounds of visceral fat inflammation in an apparently "skinny" person. Chronic inflammation is the "cause" (in Peat's view of biology, and increasingly in the mainstream, too) of aging and degenerative disease.