In general, however, green tea is very well tolerated and many people may benefit from adding this beverage to their diet. These substances can compete for the formation of naturally occurring arachidonic acid in the production of several classes of biologically active substances, the prostaglandins , the thromboxanes and the leukotrienes. Some of these substances are involved in blood clotting, inflammation , and dilation of the blood vessels, hence their activities of decreased blood clotting, providing modest symptomatic relief in rheumatoid arthritis, lowering relapse rate in Crohn's disease , decreasing inflammation in ulcerative colitis, decreasing pain associated with menstruation , and moderately lowering blood pressure. Fish oil supplements also lower blood triglycerides that can play a role in pancreatitis and cardiovascular disease. Common side effects of fish oil include a fishy taste and belching.
Large doses can cause loose stools.
Fish oil should be avoided in people with aspirin sensitivity as it may interfere with lung function and cause impaired breathing. Although garlic seems to inhibit cholesterol synthesis by the body, recent studies suggest that garlic supplements may not lower cholesterol. Garlic is composed of many sulfur containing compounds, including allinin. When garlic is crushed, allinin is converted to allicin and it is the allicin that effects cholesterol synthesis. In addition to the variability of allinin content, supplements do not contain all of the compounds found in fresh garlic.