Boiled eggs. Protein pancakes. Diced chicken breast. Whey?

3. You would most likely need supplements not because you cannot get enough protein from solid food but because most people don't have the time to cook 6 times a day. Many of us have 6 meals a day but I'm pretty sure that at least 1 or 2 meals come from shakes which consist of whey protein + other stuff. It could be a post workout meal or a pre bed meal or maybe even an on-the-go meal. If you can get all 6 solid meals in then by all means go for it. You don't need supplements. Supplements make things more convenient for me but that's basically what they're all about; convenience. Imagine taking chicken breast + rice + vege to the gym as your post workout meal. A shake would be way more convenient.