The natural food of mice is mainly cereals such as wheat, barley and rice grains, but they are omnivorous and will eat almost anything that is available. … Research around the world has shown that mice and rats are also attracted to sweet foods, but no one can agree on the best level of sweetness to attract them.

Can mice eat sugar?

“Mice do not eat sugar as a part of their normal diet, so the authors are measuring a contrived overload effect that might not be present had the rodents adapted to sugar intake over time.

Do rats eat candy?

Like chocolate, candy is too sugary. Rats can have problems with digesting these foods. Chocolate. This is also bad for rats because of the high fat and sugar content.