Protection against damage from free radicals is provided by a diet rich in ______.

A) fiber
B) beta carotene
C) niacin
D) low fat

Free Radicals

Unstable molecules that can cause damage to cells, leading to aging and diseases, including cancer.

Beta Carotene

A red-orange pigment found in plants and fruits, especially carrots and colorful vegetables, which is a precursor of vitamin A.

Fiber

Fiber is a type of carbohydrate found in plant foods that the body cannot digest, which is important for maintaining digestive health and preventing constipation.