Question

high protein diets
can increase progression of kidney disease and liver disease in people who already have kidney or liver malfunction.
may accelerate bone tissue loss.
are considered to be those that derive more than 30% of calories from protein.
all of the above are true.

Explanation:

High - protein diets can burden the kidneys and liver in those with pre - existing malfunctions. They may also lead to bone tissue loss due to increased acid load. Diets with more than 30% of calories from protein are considered high - protein.

Answer:

D. all of the above are true.