Which are the best "greens" and "whole foods" supplements? These powders and pills are made from an array of ingredients, such as wheat grass, alfalfa, kelp, spirulina, chlorella, leafy vegetables and other chlorophyll-containing ingredients, as well as fruits. To evaluate their quality, our testing focused on how free they were from impurities -- heavy metals, microbes, and dangerous pesticides.
Only 5 of the 11 products we selected for testing met our criteria for quality. The following problems were found among 6 products which failed testing: Three different powders contained 6 mcg to 11.6 mcg of lead per daily serving, representing significant and unnecessary exposure to lead, which is a toxin. One product contained a high level of arsenic, a carcinogen. A single serving of this powder (to be mixed in a cup or half-cup of liquid) contained 24.3 mcg of arsenic, which is more than twice the amount the U.S. EPA allows in a liter (4.3 cups) of drinking water. Another product contained a large amount of bacteria, suggesting unsanitary handling. A product in pill form failed to break apart properly in disintegration testing.
The cost of a suggested serving from products ranged from just 37 cents to $4.75 -- and some of the most expensive products were those which failed testing.
You must be a member to get the full test results and reviews for "greens" and "whole foods" powders and pills along with ConsumerLab.com recommendations and quality ratings. You will get results for 16 products: 11 selected by ConsumerLab.com and 5 others that passed voluntary certification testing. We also include information about 2 products nearly identical to one which passed testing.
In this comprehensive report, you'll discover:
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- Which greens and whole foods powders failed testing and which passed
- Direct comparisons of greens and whole foods supplements, including vitamin and mineral assessments
- Price comparisons
- Whether herbs and other ingredients are included at doses known to be effective
- Concerns and cautions with greens and whole foods powders, including specific concerns with certain algae (Aph. flos-aquae).