No-the right answer is no. for the most part, theyre nutritionally similar, found a recent study in the journal of the science of food and agriculture. in some cases, frozen and canned fruits and vegetables may even contain more vitamins than fresh. thats because as soon as a fruit or vegetable is picked, it starts to lose nutrients-freezing or canning it at its peak slows that process. some healthy shopping tips: choose low-sodium canned veggies, canned fruit packed in juice instead of syrup, and plain varieties of frozen produce (sauces add calories, sodium, and sugar).