Hi Markus, We truly appreciate your honesty and value your experience with our product. First of all, we would like to apologize for any inconvenience or discomfort caused by our protein bar. It is disheartening to hear that you were sick for 3-4 days with food poisoning. Could you please provide us with more details about your purchase, such as the batch or expiration date? This information will greatly assist us in identifying any potential issues and ensuring the quality of our products.