Maybe the OP is religious. Holy God made the earth for us doncha know Grains were put here to test us!
Or maybe the OP is a troll. (I love how sometimes people just pop in with one question, spark a debate and then disappear...)
"I think the basic anti-aging diet is also the best diet for prevention and treatment of diabetes, scleroderma, and the various "connective tissue diseases." This would emphasize high protein, low unsaturated fats, low iron, and high antioxidant consumption, with a moderate or low starch consumption.
In practice, this means that a major part of the diet should be milk, cheese, eggs, shellfish, fruits and coconut oil, with vitamin E and salt as the safest supplements."
- Ray Peat