Subjective Well-Being

Self-reported ratings of well being and happiness; either in general (euphoria-inducing compound) or reducing a disease state to enough of a degree to make the persons relatively happy.


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 subjective well-being

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
Kava
All comparative evidence is now gathered in our ​Supplement Goals Reference.
The evidence for each separate supplement is still freely available ​here.
Rhodiola Rosea  
Creatine  
Ganoderma lucidum  
Ginkgo biloba  
Panax ginseng  
Pelargonium sidoides  
Dehydroepiandrosterone  
Vitamin E  
Modafinil  
Nigella sativa  
Ashwagandha  
Blueberry  
Caffeine  
Chlorogenic Acid  
D-Serine  
Ephedrine  
Eurycoma Longifolia Jack  
Fish Oil  
Green Tea Catechins  
L-Tyrosine  
Maca  
Mucuna pruriens  
Peppermint  
Pycnogenol  
Pyruvate  
Vitamin C  
Zinc  
Arginine  
Centella asiatica  
Cocoa Extract  
Conjugated Linoleic Acid  
L-Carnitine  
N-Acetylcysteine  
Phosphatidylserine  
Red Clover Extract  
Ruscus aculeatus  
Sceletium tortuosum  
Theanine  
Black Cohosh  
Boswellia serrata  
Bromelain  
Lavender  
Vinpocetine  
D-Ribose