IGF-1 is currently on the World Anti-Doping Agency’s prohibited list due to how it gives athletes an unfair advantage in terms of building strength and muscle mass. (7) However, it’s still legal to use supplements that may provide IGF-1 or similar effects. Most of the studies that show positive results from using deer antler supplements have used high doses. And some have tested the product on animals (mice or rats) rather than humans.
Reports claim deer antler helped Ray Lewis overcome his recent triceps tear, and Vijay Singh has admitted to using a spray supplement. University of Alabama football players also allegedly used deer antler sprays leading up to the 2013 BCS National Title Game. Whether or not those reports are true, one thing is certain: There’s not much proof that deer antler is a performance enhancer or a miraculous healer.
Other studies reported an increase in heart strength and volume of blood pumped, while cardiac output, heart rate, mean arterial pressure, pulse pressure, central venous pressure and other parameters remained unchanged. Researchers suggest that the polysaccharides in antler may reduce the blood’s tendency to clot, improving circulation, decreasing stroke risk and boosting general cardiovascular health. Researchers theorize that the deer antler velvet may improve blood supply to muscles or act as an anti-inflammatory, allowing athletes to recover faster from training sessions.
In rats undergoing left coronary artery ligation, those with heart failure were given either Velvet Antler (Deer) or Captopril as active control for 4 weeks with a third group given water. No significant changes in cardiac structure was noted with either Velvet Antlers or Captopril (with the heart tissue being enlarged after heart failure) although left ventricular ejection fraction (LVEF) and fractional shortening (LVFS) appeared to be improved in both treatment groups to approximately the same degree and the increase in serum Brain Natiuretic Peptide (BNP) that occurred with heart failure was attenuated the same degree in both interventions.
L-Arginine: An amino acid usually found in red meats that is important for the body’s ability to manufacture proteins. L-Arginine has been used to treat conditions like high blood pressure, congestive heart failure, blocked arteries, and erectile dysfunction. L-Arginine is safe for most people, however it should not be taken by women that are pregnant or breastfeeding.