Does Microwaving Food Destroy Nutrients? Usually Less Than Long Boiling Does
19th June 2026
Microwaving food does not uniquely destroy nutrients. All cooking can reduce some nutrients, especially heat-sensitive vitamins, but microwaving is often one of the gentler methods because it is fast and uses little or no water. Long cooking times and discarded cooking water cause much of the loss in vegetables.
That is why microwaving often preserves vitamin C and other water-soluble nutrients as well as, or better than, boiling.
The myth mixes two ideas: fear of the word “radiation” and confusion about how cooking losses happen. Microwave energy does not erase nutrients in a special way. Nutrients are reduced mainly by heat, time, oxygen exposure, and leaching into water. Boiling can be hard on water-soluble vitamins because those vitamins move into the water and often go down the drain with it.