Sugar is not good in fruits ?

Meh, sort of. Natural sugars in fruits are available seasonally and usually before winter, allowing us to binge and gain a bit of weight for the times of the year meat is not readily available. Now that we can have meat all year around, fruits really aren’t needed. They were a nice available option to get us to modern living when you might die in the winter if you didn’t fatten up a bit before.

animal products are angiogenic which is great if you're wounded but not if you've got any latent cancer in your body