Read the article and choose the correct answer (A, B or C) for questions 1–7.
1What does the phrase ‘high-protein diet’ describe?
2According to the text, what else supports muscle development?
3Why might some people improve on a high-protein plan?
4What does the writer say about carbohydrates?
5Why does the source of protein matter?
6Who should seek individual guidance before a major dietary change?
7What is the article's final recommendation?