Which supplement works better to decrease fatigue: glycine-arginine-alpha-ketoisocaproic acid (gakic) or tryptophan?

Ratings at a Glance

Supplement	Effectiveness Rating	Confidence Rating
Glycine-Arginine-Alpha-Ketoisocaproic Acid (GAKIC)
Tryptophan

Effectiveness Rating: Glycine-Arginine-Alpha-Ketoisocaproic Acid (GAKIC) vs Tryptophan

The effectiveness rating is a measure of the supplements' ability to decrease fatigue. This rating answers the question of whether or not a supplement does what it claims. The evidence shows tryptophan is better than glycine-arginine-alpha-ketoisocaproic acid (gakic) in its ability to decrease fatigue. Tryptophan should provide some positive results while glycine-arginine-alpha-ketoisocaproic acid (gakic) will not.

Confidence Rating: Glycine-Arginine-Alpha-Ketoisocaproic Acid (GAKIC) vs Tryptophan

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 glycine-arginine-alpha-ketoisocaproic acid (gakic) and tryptophan 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.