Nutraceutical substance present in onion and garlic is:

Correct option is C

Onion and garlic are known for their allyl sulfur compounds, which are the active nutraceutical substances responsible for their numerous health benefits. These compounds, such as allicin (formed when garlic is chopped or crushed), have been shown to have various therapeutic properties, including anti-inflammatory, antimicrobial, and antioxidant effects. They play a significant role in promoting heart health and supporting the immune system.
Information Booster:
· Allyl Sulfur Compounds: These sulfur-containing compounds are abundant in both garlic and onions. Allicin, the most well-known compound, is produced when garlic is crushed or chopped, and it is thought to have many health-promoting properties, including lowering blood pressure, reducing cholesterol, and possessing antioxidant effects. These compounds are also responsible for the distinctive aroma of garlic and onions.
Additional Knowledge on Incorrect Options:
· (a) Adenosine: Adenosine is a nucleoside that is involved in various biological processes, including energy transfer. It is not a primary nutraceutical substance in onion or garlic.
· (b) Anthocyanate: Anthocyanins are pigments found in red, purple, and blue fruits and vegetables (e.g., berries), but they are not the primary nutraceutical substances in onion or garlic.
· (d) Catechins: Catechins are antioxidants found primarily in tea, particularly green tea. They are not the key nutraceutical substances found in onions or garlic.