In most cases, frozen foods retain their minerals and vitamins. Freezing food also doesn't change the fat, protein, or carbohydrate content. Some frozen foods actually have more minerals and vitamins than their fresh counterparts because fresh foods can lose some of their nutritional value over time, but the process of freezing helps preserve important nutrients. Incorporating more frozen foods into your diet may help you achieve your health goals. Frozen vegetables and fruits are easy to use and last longer than fresh produce, which can help reduce food waste. You can find frozen foods across all food groups, including protein, whole grains, fruits, dairy, and vegetables, making it easy to put together a balanced meal.