Garlic and onions could help protect against stomach cancer, says a massive European-based study. The new study, part of the European Prospective Investigation into Cancer and Nutrition (EPIC), followed 521,457 subjects in 10 European countries with an average age of 52. It is said to be the largest cohort study on fruit and vegetable intake and the incidence of stomach (gastric) cancer in Western countries and the first to look at adenocarcinoma of the oesophagus.

After an average of 6.5 years of follow-up, 400 cases of gastric cancer and 188 cases of oesophagus cancer had been reported. While total vegetable intake was not associated with a decreased risk of gastric cancer, the researchers report that an increase in the intake of onions and garlic of 10 grams per day was associated with a 30 per cent reduction in the risk of intestinal gastric cancer. This is not the first time that onions have been linked to reduction in the risk of certain cancers.

US researchers recently reported that onion extracts could inhibit the growth of liver and colon cancers in vitro.

A large-scale epidemiological Iowa Women's Health Study looked at the garlic consumption in 41,000 middle-aged women. Results showed that women who regularly consumed garlic had 35% lower risk of developing colon cancer.

A new study just released in the Oct. 16^th, 2007 issue of the prestigious medical journal, Proceedings of the National Academy of Sciences shows that garlic causes red blood cells to release hydrogen sulfide in the body thereby causing blood vessels to relax. 

When blood vessels relax, they become larger and are able to carry more blood and more oxygen to the brain and other important parts of the body.  Blood pressure also comes down when blood vessels relax. It is well known that high blood pressure is a major risk factor for heart disease, so this newly discovered health benefit of garlic, once again, is an example of modern day researchers confirming the wisdom of the ancients.  Garlic has been used for medicinal purposes throughout all of recorded history.

The lead researcher is Biology professor David Kraus from the University of Alabama. He said that there is also another study in progress that shows "sulfide can protect from cardiovascular damage during a heart attack, it can alleviate various sorts of inflammation, and it can reduce platelet aggregation that would cause a blood clot to form".