It is best to get all your protein, calories, vitamins and minerals from food.
You can overdose on certain vitamins and minerals which can be at best unpleasant and at worst dangerous. Nutrients are more easily absorbed in the form of food and your digestive system benefits from you eating food more than it does taking tablets or supplements.
It is also difficult to find good quality protein and vitamin supplements that do not contain unpleasant synthetic ingredients and most of them make false or overexaggerated claims. It is a very unregulated market.
If you have carefully looked at the ingredient list and understand what is in the supplements then they can have their place at times when you have limited access to food. This is how professional sports people and elite athletes do it. They get most of their fuel from food and occasionally top it up with supplements.
If you are unsure about what supplements might work for you go and see your GP, a dietician or nutritionist (although the latter is not a protected title so make sure they are suitably qualified.)
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