Eat your greens within four days of being harvested for maximum nutritional benefits.
The fresher your spinach and other leafy greens are, the more nutrients they contain. Within just a few days, levels of antioxidants and folate begin to plummet.
Your best bet for fresh greens is a local farmer’s market, followed by the grocery store. Ask what day(s) they put out fresh produce, and add a recurring reminder to your Google Calendar so you always know what date to buy the healthiest spinach on!
If access to fresh produce is a challenge, reach for the frozen stuff, which retains much of the original nutritional value at the time it was frozen.