If you tend to avoid onions on your sandwich for the sake of your breath, you will change your mind after reading this.
And try a spring or two of parsley to sweeten your breath.

Recent research has turned up impressive evidence of onions' healing powers: a large study showed that people who eat more onions in their daily diets have lower rates of stomach cancer.

Another study demonstrated that men who ate a quarter-cup of onions a day, along with four cups of tea and an apple, were one-third less likely to die from heart attacks as those who ate the least amounts of these foods.

Part of the credit for these results goes to antioxidant compounds called flavonoids.
Onions contain dozens of these compounds, which have been found to provide strong protection against free radical damage. The main flavonoid found in onions, quercetin, has strong heart-protecting benefits: it helps prevent damaging LDL cholesterol from oxidizing and sticking to artery walls, and it also helps prevent the formation of harmful blood clots. Quercetin also has been shown to halt the growth of tumors in animals. Researchers believe that quercetin and other onion compounds not only stop tumor growth but also kill harmful bacteria that may lead to tumors.

Onions contain potent sulfur compounds--they're the ones that make you cry as you slice. Researchers believe that these compounds raise levels of good cholesterol, which helps keep arterial plaque at bay. These sulfur compounds also lower levels of dangerous blood fats called triglycerides; fewer triglycerides means thinner blood, which in turn means lower blood pressure.
Onions' sulfur compounds are also a boon to asthma sufferers; they help stop allergic reactions and inflammation, helping to clear respiratory passages.

Just one medium onion per day provides all these healthy benefits.

Cut onions close to cooking or serving time to preserve the most nutrients.

Store onions in the refrigerator or in a cool place. Chilled onions will provoke fewer tears when you cut them; running your knife blade under cold water helps too.

Many people think that if certain foods are good, a lot is better.
This is not always the case, and high doses of certain food are actually toxic.

Read about the healthy food, research the vitamins and minerals and check with your health care provider if you are unsure about how much to eat and how much may be too much.

The best way to get the daily requirement of 13 essential vitamins is to eat a balanced diet that contains a variety of foods and take a "Standardized" (quality) multivitamin supplement.