Only found in red or purple onions, anthocyanins are powerful antioxidants and pigments that give these onions their reddish color. Quercetin. An antioxidant flavonoid, quercetin may lower blood pressure and improve heart health ( 19 , 20 ). Which onion has the most antioxidants? Red and yellow onions are richer in antioxidants than other types. […]

Purple onions get their color from beneficial plant chemicals called anthocyanins. They also provide you with quercetin and sulfur, which is responsible for the smell of the onion, its flavor and the tears people often experience when cutting onions. Why did my onions turn purple? Purple blotch in onion is caused by the fungus Alternaria […]

Where do purple onions come from? Red onions are native to three distinctly different regions, Turda in Romania, Tropea in Italy, and Wethersfield, Connecticut within the United States. Where are red onions grown in the US? About 10% of the US annual crop is made up of red onions. Red Onions are available all year […]

All parts of the onion plant are toxic to dogs, including the flesh, leaves, juice, and processed powders. Raw or cooked, fried or powdered, onions and the rest of the allium family (garlic, shallots, leeks, and chives) are harmful to dogs. … Onion and garlic powders are even more potent than fresh onions. How much […]

Onions absorb moisture easily, so their texture may get soft when refrigerated. Spoiled onions may develop dark spots, which will also begin to grow mold. You’ll also want to avoid onions that have sprouted, this indicates they’re beginning to go bad. How long do purple onions last? Fresh whole onions can last for up to […]

Purple onions, also called red onions, offer a healthy way to give your meals more flavor and provide nutrients without adding many calories. They also provide phytochemicals — beneficial plant chemicals — that may help lower your risk for certain health problems. Are purple onions healthier than white onions? Onions are rich in plant compounds […]

White, yellow, or red onions are also more likely to make you cry than green ones. Sweeter onions are gentler on the eyes than those with a more pungent taste. Which onions make you cry less? Sweeter onions, like red onions or Vidalia onions, are less likely to cause tears, compared to more pungent white […]

Onions contain a toxic principle known as N-propyl disulfide. This compound causes a breakdown of red blood cells, leading to anemia in dogs. The toxin causes oxidative damage to your dog’s red blood cells by attaching to the oxygen molecules in your dog’s red blood cells. Can dogs eat cooked purple onions? Although onions might […]

Serve purple onions raw if you want to preserve their color, which fades during cooking. Purple onions, also called red onions, offer a healthy way to give your meals more flavor and provide nutrients without adding many calories. Is it good to eat purple onions? Only found in red or purple onions, anthocyanins are powerful […]

Onions produce the chemical irritant known as syn-Propanethial-S-oxide. It stimulates the eyes’ lachrymal glands so they release tears. Scientists used to blame the enzyme allinase for the instability of substances in a cut onion. … The synthase enzyme converts the amino acids sulfoxides of the onion into sulfenic acid. Why do onions not make me […]