What Does the Most Recent Evaluation of Research Studies Suggest

What does the most recent evaluation of research studies suggest about the effect of a high-protein diet on bone loss?

A) High-protein diets cause bone loss in men and women.
B) High-protein diets cause osteoporosis in older women.
C) High-protein intake,with adequate calcium intake,does not cause bone loss.
D) High-protein diets that are also high in calcium cause bone loss in children.