A good supplement contains important ingredients that are essential to it’s success. You should look out for the 3 main macronutrients: protein, fats and carbohydrates. We’ve written a guide to good supplements here.
Most supplements nowadays are tailored athletes and bodybuilders. We do recommend taking supplements alongside a healthy diet and training regime, however there is nothing stopping you from taking vitamins and other health supplements.
You should definitely be looking out for sugar content, saturated fats and caffeine in most products. You should also look out for any allergens such as nuts or dairy. Definitely consult a medical specialist before taking any products.
Of course you can. Supplements only get you there that little bit quicker and help those that may struggle to hit their recommended intakes of vitamins. The best results will only ever come from good quality foods and hard exercise – supplements just add that 10%.