" Another risk of long-term food storage is contamination. Aflatoxins, for example, are harmful compounds produced by funguses that thrive on cereals, nuts, and oilseeds and that can cause liver damage, cancer, and neurological problems.32 Since hunter-gatherers don’t store foods for more than a day or two, they rarely if ever encounter these toxins. An additional and very significant health problem caused by farmers’ diets is due to lots of starch. Hunter-gatherers "

― Daniel E. Lieberman , The Story of the Human Body: Evolution, Health, and Disease