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Product Review:
Coconut Waters Review -- Tests of O.N.E., Vita Coco, and Zico
 


How Products Were Selected:
Products selected represent those commonly sold and/or available nationally in the U.S. ConsumerLab.com purchased products on the open market through retail stores, on-line retailers, catalogues, or multi-level marketing companies. Products were not accepted directly from manufacturers.

Testing Methods:
Coconut waters were analyzed for claimed amounts of magnesium, potassium, and sodium, total sugars, and possible contamination with lead.

Analyses for lead, magnesium, potassium, and sodium were performed using ICP-MS (Inductively Coupled Plasma-Mass Spectroscopy).

Products were analyzed for their sugar content using AOAC (Association of Official Analytical Chemists, International) methods in an independent laboratory.

Products failing to meet any analytical criteria in the Passing Score (below) were re-tested in a second independent laboratory using similar methods and instrumentation.

ConsumerLab.com may modify or use other appropriate test methods if necessary to test special product formulations.

Passing Score: *
To achieve a "Pass" in testing, a product had to meet the following applicable criteria:

  • If made from natural coconut water (not concentrate), amounts of magnesium, potassium, sodium, and sugar must meet the FDA requirement that a food product contain within +/- 20% of the listed amount of any naturally occurring nutrient. If made from concentrate, must meet FDA requirement that product contain 100% and not more than 125% of the listed amounts of these nutrients.
  • Not exceed California Prop 65 levels for lead contamination in a recommended daily serving, i.e., contain less than 0.5 mcg of lead per daily serving with an additional allowance of 1.0 mcg for supplements containing 1,000 mg/day or more of elemental calcium and 0.5 mcg for supplements containing specific other minerals.** For supplements not marketed for use by children, ConsumerLab.com provides an additional allowance of 0.5 mcg if containing 250 to 499 mg/day  of elemental calcium, or 1.0 mcg if containing 500 to 999 mg/day of elemental calcium, and an allowance of 0.5 mcg if containing one whole herb (not extract) ingredient or 1.0 mcg for two or more whole herb ingredients. If a maximum recommended daily serving is not defined, a daily serving size will be determined and applied by CL. 
  • Meet FDA labeling requirements.
A "Pass" was based on meeting the above criteria in either the first or second rounds of testing. 

* Passing scores allow for specific margins of technical error associated with each analysis. ConsumerLab.com reserves the right to disqualify a product at any time from passing its testing if it considers such product to present a safety risk or to provide misleading or inaccurate information in its labeling.
 
** Based on State of California's Prop 65 lead limit. California requires supplements exceeding this limit to bear a warning label regarding lead.





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