/agree with the out of practice, but Nick Rainey’s answer especially stuck out to me.
Weightloss must be a lifestyle, but there comes a point when a person cannot physically lift more based on their mass/weight. When an athlete or lifter reaches that, I would not hesitate to look into protein powders or other supplements.
I would only do this because I have researched them extensively and used them. I also stress the importance of studying all on the label as well as consulting a doctor/nutritionist/dietitian.