Typically, concrete has a density of 150 pounds per cubic foot, which means that a block of concrete that is one foot wide, one foot long, and one foot high would weigh 150 pounds. Water has the density of only 62.4 pounds per cubic foot..
Best foods: Saltine crackers or pretzels can help, says Dr. Lee, as does small quantities of dry toast or cereal. Ginger or lemon tea, fresh or frozen lemon slices, and peppermint also work. Worst foods: Greasy, spicy, or oily foods, caffeine, alcohol, and carbonated drinks can make nausea worse.
Just avoid adding too much sugar or salt, as these can aggravate diarrhea. It's probably a good idea to avoid oatmeal, since it's high in fiber, and your intestines can't tolerate the added bulk during a bout with diarrhea. Potatoes are another starchy food that can help restore nutrients and comfort your stomach.