Which supplement works better to lower blood pressure: fish oil or potassium?

Ratings at a Glance

Supplement	Effectiveness Rating	Confidence Rating
Fish Oil
Potassium

Effectiveness Rating: Fish Oil vs Potassium

The effectiveness rating is a measure of the supplements' ability to lower blood pressure. This rating answers the question of whether or not a supplement does what it claims. Both fish oil and potassium have great evidence backing up their ability to lower blood pressure. They should both provide positive results.

Confidence Rating: Fish Oil vs Potassium

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.

Potassium's confidence rating is higher than fish oil's. This means potassium's effectiveness rating from above is more valid. This does not necessarily mean that potassium works better, it simply means the evidence (included in this database) backing up potassium is more established.