5 . Think frozen , as well as fresh - Fresh is not always best . Studies have shown that frozen , canned and dried produce can be more nutrient dense than the ' fresh ' produce that might have been sitting on a truck or in cold storage for days , or even weeks .

Question: What may be a reason for choosing between fresh and frozen or canned vegetables ?
Answer: Fresh vegetables can lose vitamins and minerals during storage .Fresh vegetables are more nutrient rich than frozen vegetables .Storage for fresh vegetables is much more difficult than canned .Frozen vegetables take longer to cook with less nutrients than fresh .