Get the Most Benefit from Onions and Garlic

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"So, to get the most health benefits from Onions, let them sit for a minimum of 5 minutes, and optimally for 10 minutes, after cutting, before eating or cooking. This is to ensure the maximum synthesis of the sulfur compounds."

"Heat will inactivate the effect of thiopropanal sulfoxide, which is why it is important to allow the Onions to sit for 5-10 minutes before cooking to give the enzyme ample opportunity to enhance the concentration of active phytonutrients in your Onions. Cooking at low or medium heat for short periods of time (up to 15 minutes)such as with methods like healthy sauté should not destroy the active phytonutrients since once they are formed, they are fairly stable."

"Research on garlic, a close relative of Onion, reinforces the validity of this practice. When crushed garlic was heated, its ability to inhibit cancer development in animals was blocked; yet, when the researchers allowed the chopped garlic to 'stand' for 10 minutes before heating, anticancer activity was preserved."