In fact, boiling reduces vitamin C content more than any other cooking method. Broccoli, spinach, and lettuce may lose up to 50% or more of their vitamin C when boiled ( 4 , 5). Because vitamin C is water-soluble and sensitive to heat, it can leach out of vegetables when they’re immersed in hot water.
Are vitamins in vegetables destroyed by cooking?
The downside of cooking veggies, Liu says: it can destroy the vitamin C in them. He found that vitamin C levels declined by 10 percent in tomatoes cooked for two minutes—and 29 percent in tomatoes that were cooked for half an hour at 190.4 degrees F (88 degrees C).
Which vitamins are destroyed by boiling?
Which vitamins are most likely to be destroyed by cooking? Vitamin C and many of the B vitamins are the most unstable nutrients when it comes to cooking. Because they’re water-soluble, they leach out of vegetables into the cooking water.
Why you shouldn’t boil vegetables?
Exposing vegetables to heat for too long. Doing so destroys the majority of vegetables’ nutrients. Boiling them is also a no-go. This method causes water-soluble micronutrients like riboflavin, folate, and B and C vitamins to leach out into the water—which most people then pour straight down the drain.
Which boiled vegetables are good for health?
Vitamin C was the most affected nutrient when boiled. Vitamin C levels were reduced by more than half in broccoli, cabbage and spinach. Phytochemicals, like carotenoids and polyphenols, were more resistant to boiling, although levels were all reduced.
Are carrots healthier raw or cooked?
Did you know that cooking carrots is better for you than eating raw carrots? Cooking carrots releases the hidden pockets of good-for-you beta-carotene. In fact, eating carrots raw only gives you three per cent of this substance, but when you heat them up, they release closer to forty per cent!
Is cooked spinach still healthy?
Spinach. The leafy green is packed with nutrients, but you’ll absorb more calcium and iron if you eat it cooked. The reason: Spinach is loaded with oxalic acid, which blocks the absorption of iron and calcium but breaks down under high temperatures.
Does broccoli lose nutrients when steamed?
Beware of Boiling Broccoli
They found that microwaving the broccoli in the water for five minutes at full power produced the greatest nutrient loss, and the microwaved broccoli lost 74% to 97% of three key antioxidants. Boiling also led to a significant loss of these antioxidants.