Eating charcoal! Anyone?
You never want it but perhaps you are eating it unintentionally. From street foods, isaw, dugo and adidas. Those street foods are roasted over hot wood ember. From home roasted foods like barbecue and roasted whole fish. Charring is prevented but cannot be avoided. From burnt bread and steamed rice. Results of carelessness and lack of experience. You might be eating charcoal from those foods.
Coffee and chocolate have charcoal components too, roasted in high heat to almost charred state.
There are cases when the food is intentionally charred and consumed for the sake of pain relief. It is a tradition in our town. When someone was suffering from stomach pain. The part of the last food he ate is placed over burning wood until charred. Pound and mixed with drinking water and administered. Many cases were resolved by this method based from my observation, including my previous stomach aches. In case there is no left with food in question, any other burnt food could not be applied.
Example, if the last food eaten was fried chicken. Remaining fried chicken is charred, mixed with water and given to sufferer. Burnt rice cannot be given. Fried chicken of different batch is also not applied.
Fresh charred food as cure for stomach ache make sense. Charcoal is an activated carbon though might not be as effective as commercial counterparts. Active carbon has a very large surface area that adsorbs most things in its path including toxins from eaten foods.
According to wiki, one gram active carbon has a wide surface area of 500m2 to 1500m2. It is administered to patients suffering from poisoning or drug overdosed. The usual dose is one gram per kg body weight. Also use to treat, diarrhea, flatulence, irritable bowel syndrome and to lower blood alcohol levels.
It is likely to adsorbs stomach toxins, fats and essential vitamins and minerals.