high formaldehyde

What Food Contains Formaldehyde? It’s also naturally occurring in many foods. Fruits like apples, bananas, grapes, and plums; vegetables like onions, carrots, and spinach; and even meats like seafood, beef, and poultry contain formaldehyde. Is formaldehyde used in food? It can also be used as a preservative in some foods and in products, such as