While getting protein from food is the best way to get your macronutrient daily dose, taking a protein supplement while training hard may be a good idea.
You may say, "Well, Michelle, I don’t do supplements!"
Really?? Well, here’s the TEA!!
A systematic review of 49 randomized controlled trials with 1,863 participants who performed resistance training at least twice a week for 6 weeks or longer revealed that protein supplementation significantly increased strength, lean body mass, and muscle size in healthy adults who were not restricting calories compared to placebo or no supplements (NASM 2022)
If you really want results that actually changes your body composition, consider taking a protein supplement as part of a healthy diet while training hard.