BOSTON (CBS) – That protein powder in your morning smoothie may not be as healthy as you think.
A new study by the Clean Label Project found that several protein powders contain toxins that are harmful to your health.
High levels of heavy metals, BPA, pesticides and other toxins associated with cancer were found in the 134 protein powder products, from 52 brands, tested by the Clean Label Project.
It screened animal-based, plant-based and whey protein powders for over 130 toxins.
More than half of the protein powders tested had detectable levels of BPA, or Bisphenol-A, an industrial chemical used in manufacturing plastic items.
And according to the study, organic powders aren’t necessarily better, or safer.
The organic powders tested in the study had, on average, more than twice the heavy metals, such as arsenic, lead and cadmium, than non-organic powders.
A whopping 75 percent of plant-based powders tested positive for lead.
The study rated these products among the worst protein powders:
The study rated these products among the best protein powders: