The Best Bodybuilding Supplements: A Beginner's Guide If you're getting into bodybuilding, it's important that your diet allows you to capitalise on your hard work in the gym. Here, we take a look at the best beginner supplements for bodybuilding and the evidence supporting them in terms of growing muscle cells, helping you recover from muscle breakdown, and improving your weight training performance. David Robinson, PhD UK Fitness ProMar 4 · 8 min read