The Science Behind Vegan Weight Loss Jan 4, 2019 9:25:47 GMT -5 BBQ Butcher likes this Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by gracoman on Jan 4, 2019 9:25:47 GMT -5 There's more to it than calorie density. Propionate production comes into play when we eat the way human beings evolved to eat.