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 the reason for fresh vegetables not being fresh at all ?
Answer: Fresh vegetables are in cold storage for less than 24 hours .Fresh vegetables are cooked or dried before display at grocery stores .Fresh vegetables can be in shipping and storage for 14 days or more .Fresh vegetables are frozen and thawed before reaching grocers .