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Originally Posted by Arbitrary  I'm not talking about caloric energy. I have read that man-made fructose metabolizes to triglycerides and adipose tissue as opposed to blood glucose and I consider the ongoing debate about the dangers of high fructose corn syrup to further tip the scales. |
Any sugar can be metabolized into triglycerides, other sugars, and vice versa. That's how your liver maintains blood glucose levels in the absence of sugar in your diet, given that certain parts of the body (the brain for instance) can only metabolize glucose.
Being man made is irrelevant. If it's fructose, be it man made or natural, it will be metabolized as the body sees fit. If sugar levels are high it will convert it into lipids for storage, if sugar levels are low it will convert it into glucose where it enters the standard metabolic pathways. Your body can't tell if a molecule of fructose is man made, it's a fucking molecule of fructose and that's all your cells know.