They’re hard to answer because double blind controlled food studies on humans are impossible ethically. Our frequent animal models, mice and small primates, are

They’re hard to answer because double blind controlled food studies on humans are impossible ethically. Our frequent animal models, mice and small primates, are not apex predators as we are. Also vegetarians have involved themselves and their bias into dietetics since the inception of the field. When you read, look at the bias and vested interest. Another huge factor is the profit margin behind processed grains. There’s a massive incentive to get people to eat durable calorie rich processed foods.