Cooking maize is essential to release its nutrients.

Evidence

The raw kernel needed to be cooked in a mixture of water and white lime. — Neil MacGregor, A History of the World in 100 Objects, 180

Categorization

• corroborated: 2 independent passages support this claim — Neil MacGregor, A History of the World in 100 Objects, 180
• XREF: connects to: Ancient agricultural practices improved maize’s digestibility over centuries. — Neil MacGregor, A History of the World in 100 Objects, 180; Corn, beans, and squash form a nutritionally complete human diet — Robin Wall Kimmerer, Braiding Sweetgrass: Indigenous Wisdom,…, 481