Leading Nutrition Research Reviews

Study Rating Criteria

 # subjects in a study >500 subjects =1 apple

<500  subjects=1/2 apple

  0-1 apple
 methods:  human clinical trials =2 apples animal clinical trials =1.5 appleslongitudinal study (cohort (retrospective and prospective), snapshot)=1.5-1 apples

meta analysis=1.5-1 apples

cross-sectional study= 0.5 apple

  0-2 apples
 supplements & specifics  0-1 apple
 duration  >1 year =1 apple

<1 year =1/2 apple

  0-1 apple
 support   independent institution, government or University =1 apple

private, supplement companies =0-0.5 apples

  0-1 apple