I’m in the camp of veg (and some fruit) fiber feeding the good bacteria in the large intestine - and them producing huge amounts of butyrate - much more than one receives from eating foods like butter. But this might vary depending on one’s genetic heritage and blood type.
Contrary to the general carnivore point of view - the Inuit prized fermented birds, which had veg matter in their (decomposed) tummies. And apparently the Inuit valued spring grasses, seaweed, and berries (probably trading through ancient trade routes with other coastal-accessible tribes) - variety is the spice of life, whenever possible.
I also think the anti-oxidants in fibrous fresh whole fruit like berries, apples, and pears and some citrus are underplayed by many - but may be an essential nutrient in industrial civ, with its high load of pollutants and resulting cellular dysplasias, and its lack of raw meat eating. In fact, a lot of modern industrial folks seem to eat meat overcooked and burned.
Re fibrous fruits - according to LCHF physician and sugar research SME Robert Lustig MD, the vast majority of fiber in fibrous fruits sequesters the fructose so it’s not metabolized. Also, high fiber veg carbs are not counted at all by some in the LCHF/keto world as long as one is getting one’s fat and protein in well formulated way - the veg/fruit intake stays moderate, which is very low by SAD standards.
Also, could well tie in with your ancestral background. Personally, the majority of my ancestors come from salmon loving peoples. If I could, for animal flesh I would only eat wild-caught salmon and sea-trout (sort of half-salmon) - they are my FAVE animal taste, esp with butter! I just feel bad knowing that the salmon numbers have crashed due to human interference with traditional salmon habitats (dams, water pollution, etc) - and also the price is understandably on the high end. The “farm”-raised is way unnatural - besides the artificial dyes adding to make the sad salmon’s unnaturally paler flesh brighter for selling, the fact that the fish are forced to swim in the same direction due to a circular forced current, is mighty cruel and insane imho.
While raw wild meat is all we really need in the wild, aboriginal and indigenous peoples apparently have enjoyed diverse nibbles of wild snacks (including barbequed bugs, fish eggs, certain spices and raw honeycomb in southern climes as well as fruits and veg - seasonal as well as fermented). Why? Because… the palate is connected to the brain, and diversity of tastes are stimulating and celebratory. Food is fundamental to human culture and celebration - and the Inuit love of very stinky keviak (fermented birds with decomposed veg matter) was a version of that.