In Canadian football, while only 12* players are playing on the field at once, teams need more than just 12* players. They must have an offensive and defensive team. Most highâ¦ school football teams have 1st, 2nd, and 3rd string players, so thirty to forty players is a reasonable number.
Gastroenteritis may result from ingesting chemical toxins (see Chemical Food Poisoning). These toxins are usually produced by a plant, such as poisonous mushrooms, or by certain kinds of exotic seafood and thus are not the product of an infection.
They can be caused by something as simple as swallowing air or eating the wrong foods. Less often, gas and bloating are signs of something imminently more serious, ranging from intestinal disorders to potentially life-threatening malignancies in the lower digestive tract, such as colorectal cancer. Common Causes of Gas and Bloating The two main causes of gas are swallowed air and the breakdown of food that leads to the production of gas. The latter is especially true when foods are high in sugar, starch, or fiber.