Description: The U.S. Food and Drug Administration has asked a California distribution company to recall pills and capsules advertised as "all natural" products to correct erectile dysfunction.

Calling True Man Sexual Energy Nutrient Capsules and Energy Max Energy Supplement Men's Formula Capsules illegal drug products, the FDA said in a news release that the supplements' ingredients are potentially harmful and could cause dangerously low blood pressure.

In a letter to the owner of America True Man Health Inc., of West Covina, Calif., the FDA said that the products have substances with chemical structures very similar to the active ingredients in FDA-approved prescription drugs, such as Viagra. The FDA has not approved the products distributed by America True Man Health Inc., and the labels don't declare the the active ingredients thione, an analog of sildenafil; or piperadino vardenafil, an analog of vardenafil.

These substances can be especially harmful to men with diabetes, the FDA said