Something that we usually throw away when we cook, could be more valuable than the actual vegetable. Recent research confirms that the outer skins of onions provide an exceptionally rich source of plant compounds called flavonoids, especially the powerful antioxidant and anti-inflammatory compound, quercetin.
Quercetin is under study as an agent for lowering LDL cholesterol and blood pressure, fighting allergies, reducing inflammation, enhancing muscle growth and function, treating depression, some forms of cancer, and other conditions. The substance is also said to have anti-inflammatory effects.
Although the skin is not edible, the benefits can be reaped by adding it to stock. To extract quercetin and other beneficial plant compounds that onions skins might contain, toss a whole onion or two, scales and all, into the pot next time you make soup, put a stew into the crock pot, or cook rice.
Because plants can't move around, they have to manufacture what they need, not merely to grow, but to defend, protect, and heal themselves. It makes sense that the compounds plants produce in response to stress would help a human under similar circumstances.
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RELATED: Three Health Benefits Of Liver And Onions (Seriously!)
It also makes sense that plants would concentrate many of these protective compounds in the outer coverings–skins and peels of various roots and fruits–the point where most environmental assaults would likely occur.
An onion-skin infusion has a long reputation as a softening and smoothing hair rinse. Just run the strained onion-skin broth through freshly washed hair a few times and let it air dry.
There are other vegetable skins and leaves we tend to throw away, but are actually more beneficial to our bodies.
Broccoli leaves are also usually discarded but are full of vitamins A and C. The leaves can be...
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...boiled like cabbage.
Despite having five times the amount of magnesium and calcium contained in its stalks, celery leaves are also often overlooked. The leaves also contain vitamin C and phenolics – powerful antioxidants which may help combat cancer, heart disease and even ageing.
Orange peel and melon rind can be blended into smoothies along with the rest of the fruit.
Melon rind is rich in citrulline, an amino acid which helps improve circulation, and orange peel is full of fibre, flavonoids and vitamins.
