Background. Vitamin B12 is an essential water-soluble vitamin that is commonly found in a variety of foods, such as fish, shellfish, meat, eggs, and dairy products. Vitamin B12 is frequently used in combination with other B vitamins in a vitamin B complex formulation.
Gas, bloating, intestinal cramps, and diarrhea are common effects of eating garlic, especially if you are sensitive to it. The supposed health benefits of garlic and the common myth that garlic is good for you does not apply if it makes you sick.
Raw garlic can upset your stomach, esp if there is a lot of green in it. Cooked garlic should be ok. If you are eating raw garlic when you are sick (which is a great thing), I would suggest starting with just one finely chopped clove of the freshest, least green garlic you can find.