Children may contract infection from sandboxes contaminated with petsâ stool. Certain types of immature worms may penetrate through your skin during swimming or walking barefoot; when they reach the small or large intestine they grow into adult worms. Common garden worms usually do not cause illness in human.
People with lactose intolerance do not produce enough of the lactase enzyme to break down lactose. Instead, undigested lactose sits in the gut and gets broken down by bacteria, causing gas, bloating, stomach cramps, and diarrhea. Lactose intolerance is fairly common and seems to affect guys and girls equally.
The sugars which produce gas are fructose, sorbitol and lactose. Lactose is milk sugar which is found in milk, cheese, ice cream, salad dressings, cereal, processed foods and bread. Fructose is found in pears, wheat, onions and artichokes. It is also found in fruit juices and sodas. Sorbitol is found in prunes, apples, pears and peaches. It is an added sweetener in sugar-free gums and candies, as well as in diet foods. These sugars can cause gas in the intestines.