Fresh vegetables are more nutritious than frozen?

Studies show that sometimes you can get more nutrients from frozen veggies, depending on variety and how old the vegetables at your supermarket are. That's because produce starts losing nutrient quality as soon as it's picked.

Frozen vegetables are flash-frozen right after harvest so they are preserved at their peak of freshness when they are most nutritious. Your best bet in terms of taste, nutrition, and the environment is still local in-season produce.

When that's not an option frozen can be a better choice (from a nutrient standpoint) than spinach that takes two weeks to reach your table.

Steam or roast veggies instead of boiling, which leaches out water-soluble vitamins into the cooking water.