My speculation: It seems to me that fruit does serve a survival purpose. The majority of sweet fruit is ripe in the fall, when we want to be putting on a layer of fat to eat off all winter when it's cold and hunting is tough. So if Grok and his family find a wild apple tree in September and eat their fill of apples every day while also catching some meat, they will be very effective in adding a decent layer of fat to keep them through the winter. So while primal and healthy, it's not going to be your best choice if weight is an issue.
(speaking for North American geography, not sure what the in-season for the rest of the world's fruit)
Type 1 Diabetic. Controlling blood sugar through primal life.
Maintain A1c of 6.0 or lower
More dietary fat, less carbs, moderate protein
LHT and sprint as per PB fitness