###Human: I consumed food containing toxin. Please help. ###Assistant: Hi. I would like to give a scientific explanation of food/chemical toxicity. The ingredients used to prepare fast food may not always be the same. The cook may use different brands, different batch of the same manufacturer, or different item itself. The procedure of cooking is also subjective. Hence the taste what we get once may be different from the second time. A difference in the taste or missing something second time compared to the previous time also happens due to consumer psychology (who eats the food), the level of hunger or mood or the environment. And you are healthy in other words alive after eating that food which means it is not fatal to you.  There are many dangerous or toxic foodstuff which we use commonly. It includes vegetables exposed to pesticides, meat exposed to antibiotics/hormones during farming, preservatives, flavors, taste enhancers (including some chemicals which make you addicted to using it again). Our body can detoxify and excrete a few of these toxins.  It is possible for a toxin to act in the body or show its bad effect for a maximum of one week. The washout period for any chemical is 14 days. It means after 14 days, any type of toxin gets excreted out of the body. Hence it cannot show its effect after one month.  Consuming the same chemical daily through food or exposure to chemical hazards continuously can produce some amount of visible bad effects on the body organs such as liver or kidney. It will not happen with a single dose. If the single dose is high, then the side effects appear immediately and go off gradually after few days. The amount of toxins deposited within the body gets detoxified slowly and will be excreted over a period of time. Thus, the amount/volume of toxin in the body will be definitely lesser than earlier.  One-time exposure will never cause late effects in the body. Either it shows its bad effect immediately or as early as possible. No later effect is possible. Long time exposure to chemicals will affect the liver or kidney, and they get altered in their microscopic structure. Because of this structural alteration, the function of that organ gets affected. This can be clinically seen with some symptoms. There are laboratory investigations to check the damage caused to any particular organ. This will tell you if the liver/kidney is affected or not. But, such a damage will never happen with single exposure to toxins in food.