He apparently believes that a supplement being made by Metabolic and sold by GNC (Stemulite) is bad stuff. To that end, he sent demand letters to Metabolic and GNC in Nevada and Pennsylvania, respectively, accusing them of violating the California Consumer Legal Remedies Act by way of false advertising, and threatening to sue them (presumably in California)* if they did not stop their (allegedly) evil ways and agree to an injunction to that effect.