801010 diet is pretty damn healthy. Look up 30 bananas a day on the web or fruitarian athlete.
30 Days, 900 Very Ripe Bananas
http://www.thefruitarian.com/
So rather than being ill you can be a top end endurance athlete. Try that with steak.
I’m not saying we should all become acting frugivores. I’m saying that’s what we are biologically. the more we deviate from it the unhealthier we get. This is also why heating veg is good, our guts are best for digesting soft fruit, not hard veg. That why meat rots inside human guts and doesn’t digest (even after cooking it). Plant based (PLANT) is the nearest we can get to our natural diet.
Fwiw frugivores observed in the wild can an do eat animal protien, sometimes frequently. Eggs would be plentiful and very easy to get, so are insects and so on. But it doesnt mean they aren’t still frugivores, nature doesnt fit neatly into scientific boxes and most frugivores are acting omnivores/opportunistic feeders.
One thing you can say about human society that is based around animal protien. Short lifespans or longer lifespans but riddled with diseases and propped up by drugs.