These snacks are not good for athletes. Nuts as well as crisps are full of salt. During your workout you sweat a lot and you lose salt from your body. However, if you try to restore the level of sodium in your body by consuming salty foods, then you will reduce the level of potassium. Without enough potassium you won’t be able to recover after the gym. Exercise takes lots of potassium from your body and you need to boost the amount of this element back. So refrain from snacking on salty crisps and nuts after training.