It depends how you define supplements, but I consider anything with vitamins, minerals, or calories to be optimum for a beginner. I repeat - optimum.
There are so many changes going on in the beginning that it's a waste to use non-food performance enhancers. You need to learn how to get the most out of just food, training, and recovery before using supplements or you'll be shortchanging yourself. If you are not improving fast enough it's your diet, training, or recovery.
If you are not improving fast enough it's your diet, training, or recovery.
Yes, I wrote that twice. Read it a few times more. Once you feel that you don't need supplements to improve is probably when it's okay to use them. It's kind of a paradox. If you think you need them, you're not doing things right. They will help when you get to a more experienced state, but right now the basics are what you need to improve, anything else is money down the drain.