To spot unsafe or illegal performance-enhancing supplements, it's important to be vigilant and informed. Here are some ways to identify them:

1. Check for FDA Approval: Look for supplements that have been approved by the Food and Drug Administration (FDA). If a product claims to enhance performance but lacks FDA approval, it may be unsafe or illegal.
2. Review the Ingredients: Research the ingredients listed on the supplement. Be wary of substances that are banned by sports organizations or known to have harmful side effects. For example, anabolic steroids, stimulants like ephedrine, and selective androgen receptor modulators (SARMs) are often prohibited and pose health risks.
3. Seek Third-Party Testing: Choose supplements that have been tested by third-party organizations, such as NSF International or Informed-Choice. These tests can help verify the purity and safety of the products.
4. Consult Trusted Sources: Seek advice from healthcare professionals, nutritionists, or certified trainers who can provide reliable information about performance-enhancing supplements. They can help you identify red flags and make informed decisions.

References:

• Food and Drug Administration (FDA) - www.fda.gov
• NSF International - www.nsf.org
• Informed-Choice - www.informed-choice.org