+3 Strong Evidence of Effectiveness.
The evidence in humans shows overwhelmingly positive benefit. Our team is highly confident about its therapeutic potential.
+2 Moderate Evidence of Effectiveness.
Several well-designed studies in humans have shown positive benefit. Our team is confident about its therapeutic potential.
+1 Slight Evidence of Effectiveness.
Preliminary studies suggest some benefit. Future trials are needed before we can make a stronger recommendation.
0 Level of Effectiveness Unclear.
More studies are needed before we can make a recommendation.
-1 Possibly Ineffective and/or Toxic.
Our team does not recommend this product because either clinical trials to date suggest little or no benefit or the potential toxicity may not be worth the risk.
-2 Definitely Ineffective and/or Toxic.
The science does not support any benefit. Our team suggests that you consider other alternatives.