Even though greens powders are made of nutrient-dense foods, that doesnt mean theyre a good idea for everyone. Since greens powders contain vegetables in a condensed form, theyre also high in specific vitamins, like vitamin K, that can interfere with blood-clotting medications. If youre on blood thinners or other medications or you have chronic health problems, always check in with your doctor before taking a new supplement, greens powders included.

Even if you dont fall into these categories, its important to make sure youre getting your greens powders from a trusted source. When it comes to regulation, the supplement industry is a bit of a gray area. Make sure the supplement manufacturer can verify that the greens have been tested for contamination and passed with acceptable levels. Its best to buy from companies whose greens powders have been certified through a third-party testing laboratory, like NSF International. That way, you know youre getting exactly whats listed on the label and nothing else.

And make sure youre sticking to the recommended serving size. More isnt necessarily better, since some vitamins can build up in the system and lead to toxicity. A scoop or two per day, along with a healthy, vegetable-rich diet, is all you need.

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Greens Powders Are The Secret To Getting More Veggies: Here's How To Pick One - mindbodygreen.com