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Product Review

Greens and Whole Food Powders and Supplements Review (Including Chlorella and Spirulina)

See How Powdered Vegetables, Fruits, and Algae Compare and Avoid Problems

Product Review

Protein Powders and Shakes Review

Find Out Which Protein Powders Passed or Failed Our Tests

News Release

6/09/2010

ConsumerLab.com tests "greens" and "whole foods" products; Most offer healthful nutrients, but some found contaminated with heavy metals

WHITE PLAINS, NEW YORK — JUNE 9, 2010 — "Greens" powders, made from wheat grass, alfalfa, kelp, spirulina, leafy vegetables and other chlorophyll-containing ingredients, were recently tested by ConsumerLab.com for potential contamination with heavy metals and pesticides. ConsumerLab.com found that six of the eight products selected for testing met quality standards, but two products were contaminated with lead and/or cadmium. Americans purchased $74 million worth of "greens" products in 2009 according to Nutrition Business Journal.

News Release

1/31/2019

Contamination Still an Issue in Some Greens and Whole Food Products, ConsumerLab Tests Reveal

White Plains, New York, January 31, 2019 — Powders and capsules containing ingredients such as wheat grass, spirulina, chlorella, and fruits and vegetables are a popular way to get vitamins, minerals and other plant-based nutrients, but past tests by ConsumerLab have found that these products can also be contaminated with toxic heavy metals such as lead and arsenic. Contamination with pesticides and pathogenic bacteria can also be a concern. So which greens and whole food powders and capsules on the market provide the best quality and value, without contamination?  

News Release

8/08/2016

ConsumerLab Finds Lead, Cadmium and Arsenic Contamination in Greens and Whole Foods Supplements

White Plains, New York, August 9, 2016 — Powders, pills and drinks made from ingredients like wheat grass, alfalfa, kelp, spirulina, chlorella, leafy vegetables and fruits are a popular choice for people looking to increase their intake of vitamins, minerals and other plant-based nutrients. However, recent tests by ConsumerLab.com of "greens" and "whole foods" products revealed that four of 13 products exceeded limits for lead. One of these four was also contaminated with cadmium, while another was contaminated with arsenic. The findings were confirmed in a second, independent laboratory.

News Release

1/03/2019

ConsumerLab Tests Reveal the Best Protein Powders, Shakes and Drinks -- 20% of Protein Powders and Drinks Fail CL's Tests of Quality

White Plains, New York, January 3, 2019 — Combined with resistance exercise, protein supplements can help athletes build muscle and older people prevent muscle loss. They can also help people with diabetes maintain blood sugar levels when consumed as part of a low-calorie diet. But with so many protein products on the market, how can consumers know which protein powders, shakes, and drinks are best?

News Release

2/09/2022

Caution With Spirulina Supplements: ConsumerLab Tests Reveal Lead Contamination, Quality Concerns

White Plains, New York, February 9, 2022 — Problems were discovered in three out of four spirulina supplements recently tested by ConsumerLab. One product was found to be contaminated with lead, and two other products, which were tablets, failed to disintegrate within the expected time. In fact, the tablets for both products remained almost completely intact even with extended time, raising concerns that the ingredients may not be properly released into the digestive system. ConsumerLab also tested three chlorella supplements, all of which passed testing.

News Release

7/08/2013

Contamination a Common Problem in "Greens" and "Whole Foods" Products According to ConsumerLab.com

White Plains, New York — July 8, 2013 — "Greens" and "whole foods" powders and pills, made from wheat grass, alfalfa, kelp, spirulina, leafy vegetables and other chlorophyll-containing ingredients, as well as fruits, were recently tested by ConsumerLab.com for potential contamination with heavy metals, microbes, and pesticides. ConsumerLab.com found that only 5 of the 11 products selected for testing met its quality standards. Powders that failed testing were contaminated with lead, arsenic, or bacteria, and a pill failed to properly break apart. Americans purchased $834 million worth of "greens" products in 2011 and the products represent an expanding market, according to Nutrition Business Journal.

News Release

2/25/2022

Top-rated Vitamin and Supplement Brands and Merchants for 2022 Based on Consumer Satisfaction

White Plains, New York, February 25, 2022 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 8,049 responses collected in November/December 2021. Respondents gave ratings of hundreds of brands and merchants of which 143 brands and 35 merchants each received at least 90 consumer ratings. Among these popular brands and merchants, those receiving the highest rating on overall consumer satisfaction within their specific market segment are listed below.

News Release

2/25/2020

Top-rated Vitamin and Supplement Brands and Merchants for 2020 Based on Consumer Satisfaction -- Results of the ConsumerLab.com Survey of Vitamin & Supplement Users

White Plains, New York, February 25, 2020 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 9,782 responses collected in late November and early December 2019. Respondents gave ratings of hundreds of brands and merchants of which 137 brands and 39 merchants each received at least 90 consumer ratings. Among these popular brands and merchants, those receiving the highest rating on overall consumer satisfaction within their specific market segment are listed below.

News Release

2/25/2021

Top-rated Vitamin and Supplement Brands and Merchants for 2021 Based on Consumer Satisfaction -- Results of the ConsumerLab.com Survey of Vitamin & Supplement Users

White Plains, New York, February 25, 2021 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 9,647 responses collected in November 2020. Respondents gave ratings of hundreds of brands and merchants of which 149 brands and 38 merchants each received at least 90 consumer ratings. Among these popular brands and merchants, those receiving the highest rating on overall consumer satisfaction within their specific market segment are listed below.

News Release

2/25/2019

Top-rated Vitamin and Supplement Brands and Merchants for 2019 Based on Consumer Satisfaction -- Results of the ConsumerLab.com Survey of Vitamin & Supplement Users

White Plains, New York, February 25, 2019 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 10,931 responses collected in late November and early December 2018. Respondents gave ratings of hundreds of brands and merchants of which 145 brands and 45 merchants each received at least 90 consumer ratings. Among these popular brands and merchants, those receiving the highest rating on overall consumer satisfaction within their specific market segment are listed below.

News Release

2/25/2018

Top-rated Vitamin and Supplement Brands and Merchants for 2018 Based on Consumer Satisfaction

White Plains, New York, February 25, 2018 — Each year, ConsumerLab.com surveys its free e-newsletter subscribers about the vitamins and supplements that they use. The results below are based on 11,446 responses collected in late November and early December 2017. Respondents gave ratings of hundreds of brands and merchants of which 141 brands and 48 merchants each received at least 90 consumer ratings. Among these popular brands and merchants, those receiving the highest rating on overall consumer satisfaction within their specific market segment are listed below.