For a 70 year old man with type 2 diabetes mellitus, hypertension, and a 10 month history of erectile dysfunction, what supplements can be initiated? Acetyl L Carnitine Effects On Erectile Dysfunction [K91oLN883SE] Glycine propionyl L carnitine and erectile dysfunction L Carnitine for Erectile Dysfunction: What the Evidence Shows and Practical Considerations L Carnitine Erectile Dysfunction: What the Evidence Actually Shows Serum l carnitine and vitamin D levels may be low among oral sildenafil citrate non responders International Journal of Impotence Research