Please Scroll Down to See Forums Below 
Burning_Inside
Elite Mentor
Supposedly been tested and its main ingredient does nothing for fat loss.
http://jama.ama-assn.org/issues/v28...s/joc80747.html
http://jama.ama-assn.org/issues/v28...s/joc80747.html
Just to let you all in on a secret about Hydroxycut........
- Thread starter Burning_Inside
- Start date
I don't think it's a secret.....it has been documented for at least 5 years that HCA does nothing for fatloss in humans. However, there is evidence that HCA can increase relative fat burning during exercise (thus sparing glycogen), possibly increasing performance:
Short-term (-)-hydroxycitrate ingestion increases fat oxidation during exercise in athletes.
Lim K, Ryu S, Ohishi Y, Watanabe I, Tomi H, Suh H, Lee WK, Kwon T.
Institute of Elderly Health, Kangnam-gu, Seoul, Korea. [email protected]
(-)-Hydroxycitrate (HCA) is known to inhibit increasing malonyl CoA concentration during endurance exercise. Furthermore, a
short-term administration of HCA enhances endurance exercise performance in mice. Therefore we investigated the short-term
administration of HCA on the exercise performance of athletes. Subjects were administered 250 mg of HCA or placebo as a control
(CON) for 5 d, after each time performing cycle ergometer exercise at 60% VO2max for 60 min followed by 80% VO2max until
exhaustion. Blood was collected and expired gas samples analyzed at rest and every 15 min. The respiratory exchange ratio was
significantly lower in the HCA trial than in the CON trial (p < 0.05). Fat oxidation was significantly increased by short-term
administration of HCA, and carbohydrate oxidation was significantly decreased (p < 0.05) during exercise, presumably resulting in
increasing the cycle ergometer exercise time to exhaustion after 1 h of 60% VO2max exercise (p < 0.05). These results suggest that a
short-term administration of HCA enhances endurance performance with increasing fat oxidation, which spares glycogen utilization
during moderate intensity exercise in athletes.
As we should all know by now, increased fat oxidation by itself does not lead to loss of bodyfat unless your caloric intake is below maintenance which is prolly why people don't lose fat on HCA unless they also diet, in which case it is the diet that leads to fat loss, not the HCA.
Short-term (-)-hydroxycitrate ingestion increases fat oxidation during exercise in athletes.
Lim K, Ryu S, Ohishi Y, Watanabe I, Tomi H, Suh H, Lee WK, Kwon T.
Institute of Elderly Health, Kangnam-gu, Seoul, Korea. [email protected]
(-)-Hydroxycitrate (HCA) is known to inhibit increasing malonyl CoA concentration during endurance exercise. Furthermore, a
short-term administration of HCA enhances endurance exercise performance in mice. Therefore we investigated the short-term
administration of HCA on the exercise performance of athletes. Subjects were administered 250 mg of HCA or placebo as a control
(CON) for 5 d, after each time performing cycle ergometer exercise at 60% VO2max for 60 min followed by 80% VO2max until
exhaustion. Blood was collected and expired gas samples analyzed at rest and every 15 min. The respiratory exchange ratio was
significantly lower in the HCA trial than in the CON trial (p < 0.05). Fat oxidation was significantly increased by short-term
administration of HCA, and carbohydrate oxidation was significantly decreased (p < 0.05) during exercise, presumably resulting in
increasing the cycle ergometer exercise time to exhaustion after 1 h of 60% VO2max exercise (p < 0.05). These results suggest that a
short-term administration of HCA enhances endurance performance with increasing fat oxidation, which spares glycogen utilization
during moderate intensity exercise in athletes.
As we should all know by now, increased fat oxidation by itself does not lead to loss of bodyfat unless your caloric intake is below maintenance which is prolly why people don't lose fat on HCA unless they also diet, in which case it is the diet that leads to fat loss, not the HCA.
