Question

What is the best possible way to verify claims a manufacturer makes about a supplement's safety and effectiveness?

the manufacturer's website
the product's commercial advertisement
the US Food and Drug Administration website
a consumer's blog review

Answer 1

U.S food and Drug administration

Step-by-step explanation:

Answer 2

The answer is the US Food and Drug Administration website.

The FDA is responsible for monitoring the effectiveness of all products that the public consumes, from foods, vaccines, drugs, and animal feeds. In its website, it has a review for every product released to the public that determines its quality and approval status.