Red Blood Cell Count

Red blood cell count refers to total erythrocytes in serum, and is usually measured in toxicology testing or some instances of anemia. Although higher than average levels of red blood cells can needlessly increase blood pressure, it supports aerobic exercise and oxygen delivery.


Research analysis by and verified by the Examine.com Research Team. Last updated on Apr 29, 2017.

Human Effect Matrix

The Human Effect Matrix looks at human studies (it excludes animal and in vitro studies) to tell you what supplements affect red blood cell count

Grade Level of Evidence
Robust research conducted with repeated double-blind clinical trials
Multiple studies where at least two are double-blind and placebo controlled
Single double-blind study or multiple cohort studies
Uncontrolled or observational studies only
Level of Evidence
? The amount of high quality evidence. The more evidence, the more we can trust the results.
Outcome Magnitude of effect
? The direction and size of the supplement's impact on each outcome. Some supplements can have an increasing effect, others have a decreasing effect, and others have no effect.
Consistency of research results
? Scientific research does not always agree. HIGH or VERY HIGH means that most of the scientific research agrees.
Notes
Vitamin E
All comparative evidence is now gathered in our ​A-to-Z Supplement Reference.
The evidence for each separate supplement is still freely available ​here.
Royal Jelly  
Saffron  
Astaxanthin  
Echinacea  
Garlic  
Lactobacillus reuteri  
Spirulina  
Velvet Antler  
Nigella sativa  
Vitamin D  
Ashwagandha  
Tetradecyl Thioacetic Acid