Garlic and Aged garlic reduce the risk of colon cancer

Researchers from various institutions in Australia systematically reviewed the scientific evidence from all studies conducted over the last decade that examined the effects of garlic on colorectal cancer (CRC). A randomized controlled trial of Aged Garlic Extract reported a statistically significant 28% reduction in both the size and number of colon adenomas (precancerous stalks) in patients with CRC. Five of eight case control/cohort studies suggested a protective effect from raw or cooked garlic. A published meta-analysis of 7 studies confirms protection with a 30% reduction in relative risk. 11 animal studies demonstrated a significant cancer preventing effect of garlic or its constituents. The study analysis is published in the October 2007 issue of the Journal of Nutrition.