Which supplement works better to decrease body fat: vitamin c or vitamin d3?

Ratings at a Glance

Supplement	Effectiveness Rating	Confidence Rating
Vitamin C
Vitamin D3

Effectiveness Rating: Vitamin C vs Vitamin D3

The effectiveness rating is a measure of the supplements' ability to decrease body fat. This rating answers the question of whether or not a supplement does what it claims. Both vitamin c and vitamin d3 have good (but not great) evidence showing they may be able to decrease body fat. Both supplements should provide some positive results.

Confidence Rating: Vitamin C vs Vitamin D3

Another factor to take into account when comparing supplements is the confidence rating. This rating is a measure of how valid each supplement's effectiveness rating is. Remember, the confidence rating is a measure of how much you can trust the effectiveness rating. This rating is based on how many studies are included in the database on a supplement's claims. Ideally, you want a high effectiveness AND confidence rating.

Both vitamin c and vitamin d3 have low confidence ratings. This means neither supplement has an adequate amount of research to back up this claim. A low confidence rating questions the validity of the effectiveness rating.