However, the leaf is used in A. ursinum and the bulb is used in A. sativum. A. ursinum also has higher quantities of many of the active substances than A. sativum does and upon digestion has less odor. In particular, A. ursinum has more of the water-soluble substances. As well, allicin has known side effects and is also highly unstable. We have briefly discussed adenosine and glutamyl peptides in this technical bulletin.
Flavonoids are substances in plants that often have health benefits.
Fructanes are significant because they are indigestible sugars known as oligosaccharies. Many companies market garlic products with a guaranteed allicin content. Allicin can also cause side effects in some people, so products with high allicin content could be problematic. Suggested Reading Clouatre, Dallas, Ph.D., 1995. The Miracle Nutrient.