HUMAN NUTRITION

Detailed explanation-1: -Heat, light, exposure to air, cooking in water and alkalinity are all factors that can destroy vitamins.

Detailed explanation-2: -Processes that expose foods to high levels of heat, light or oxygen cause the greatest nutrient loss.

Detailed explanation-3: -Cooking food in excess water dissolves many nutrients, particularly water soluble vitamins, in the water. When the extra water is thrown away, the nutrients dissolved in the water are also lost. Cooking food at high heat can destroy vitamin C.