Things that are fresh and just picked have more nutrition than things that have been picked weeks ago or have been stored or processed. Focus your food and nutrition on locally-grown and fresh materials if you have the opportunity. Processing takes away nutrition whereas fresh and whole ensures good nutrition. I prefer homegrown with no chemicals, or organic certified foods to ensure that there are no chemicals that my body needs to spend time and energy cleaning out.
Disclaimer: I am not affiliated with the Dr. Christopher Corporation. The conclusions I am sharing are from my own experience. This information is for education only and makes no claims of medical advice.