Erectile Dysfunction: Natural Remedies Do nutraceuticals work in erectile dysfunction? Although nutraceutical based treatments are often offered for erectile dysfunction ( ED), their efficacy remains doubtful. In a recent meta analysis, the efficacy of available nutraceutical Ronnie Coleman L Carnitine 3000, Mixed Berry 473ml Icarifil, a Natural Mixture Based on L Citrulline and L Carnitine as a Novel Multicomponent Nutraceutical to Modulate ROS and PDE5 Amazon.com: Ronnie Coleman Signature Series L Carnitine XS 3000 Liquid, Amino Acids Metabolism and Lean Muscle Strength Support, Stimulant Free, Sugar Free, Zero Carbs, Blue Razz, 16 Oz : Health & Household Understanding Over the Counter Erectile Dysfunction Medications Limitless Male Medical Clinic