Patrick Arnold is an organic chemist renowned in the field of performance enhancement and sports supplements. Patrick first hit the public eye in the late 1990's when he introduced androstenedione ("Andro") to the world of professional sport.

Patrick has since turned his attention away from prohormones and towards exogenous ketone supplements (BHB). Will ketone supplements ever be banned from sport? Patrick thinks not:

It's a good question. No. I can't see how it could possibly be a banned substance. I mean, BHB is present in many foods, be it in small levels. BHB is naturally occurring in your body. It's a actual energy substrate. It's an actual nutrient. I mean, it's right there along with protein, carbs and fats.

I've been using KetoForce for almost two years now in mountain bike, gravel grinder and cyclocross races. Of course, I don't know if it improves my performance, but 30ml (three capfuls) reliably raises my blood ketone levels by about 1.5mmol/L.

I make KetoForce more palatable using this recipe, courtesy of the late Chef Rachel Albert:

• 30ml of KetoForce
• 250ml (8oz) of water
• The juice of half a lime
• One teaspoon of apple cider vinegar
• Rachel used Stevia, I skip it

More recently, Patrick has introduced KetoCaNa, a more palatable and portable powdered form of BHB.

Are you using ketone supplements to help with your athletic performance? What sport? Have you been able to quantify the difference? Please, let me know in the comments below.