Available research-based information indicates that the nitrates are naturally-occurring in some vegetables in higher concentrations than in others, including beets and spinach. Other root vegetables and leafy greens are mentioned more generically. Another source cites beets, spinach, turnips, and collard greens as containing high nitrate levels. Because the nitrates are naturally-occurring, they will be found in homegrown and organic produce as well, though perhaps in lesser quantity than in non-organic commercially produced vegetables. While there are advantages to making baby food from organic produce, organic vegetables are still not recommended for young infants. Research suggests that they should not be fed to infants in their first year. If they are used at all, they should only be consumed in moderation.
If you choose to make your own baby food from organic vegetables, be advised that storage increases nitrate levels. Using fresh vegetables better ensures that these nitrate levels will remain as low as possible. Nitrates also are released into water while the vegetables are cooked, so take care to ensure as little as possible of this water ends up in the baby food.
