Hi there ~ I understand your concerns. There are no overdose effects of any of the medications, however you might experience nausea. Lipid soluble vitamins like A D E and K may cause toxicity in overdose, however you are very unlikely to overdose unless you intentionally want to do so. Evion or vitamin E is for depression, celin is for cell integrity, b-complex is for overall body metabolism, whey protein is a simple protein which is easily broken down and is used in body building and the dosages that are necessary vary. I hope this answers your questions. Please consult a nutritionist if you feel this information is inadequate or if you need other answers that need discussion in a detailed fashion. I hope this helps. Take care and have a lovely day!