A nurse is teaching a client who has osteoporosis about how to increase calcium in their diet. The nurse should instruct the client that which of the following foods is the best source of calcium?

A. 1/2 cup raw carrots: Carrots contain minimal calcium, providing only a small fraction of the daily requirement. While nutritious, they are not an effective source for preventing or managing osteoporosis. B. 3 oz canned tuna: Tuna is high in protein and omega-3 fatty acids but contains very little calcium. It does not contribute significantly to meeting daily calcium needs essential for bone health. C. 6 oz low-fat yogurt: Yogurt is rich in calcium and often fortified with vitamin D, making it an excellent dietary source for promoting bone strength. Consuming yogurt helps maintain adequate calcium intake, which is critical for osteoporosis prevention and management. D. 1 slice whole wheat bread: Whole wheat bread provides some nutrients, including fiber and small amounts of minerals, but its calcium content is low. It is not sufficient to meet the dietary calcium requirements needed to support bone health.