Here is an excerpt from an article in Life Extension Magazine:
A little known side benefit to the class of antihypertensive drugs known as angiotensin II receptor blockers is that they enhance insulin sensitivity, increase utilization of fat as energy, and improve mitochondrial function.5,7,13,38,39,100 Of all the drugs in this class, telmisartan stands out as superior for potential longevity enhancement.101-103
As humans age, mitochondrial dysfunction becomes a deadly factor in the development of obesity, insulin resistance, endothelial breakdown, and type II diabetes.104-109 Telmisartan helps correct these underlying mechanisms of aging and death (as do many of the nutrients Life Extension® members already take).
Telmisartan activates a regulator of cellular energy called PPAR-gamma coactivator 1 alpha (PGC-1a), which stimulates the burning of excess calories.110,111 This can be a crucial factor in weight management.
Studies indicate that telmisartan directly stimulates PPAR-gamma (peroxisome proliferator-activated receptor gamma), a key inducer of beneficial metabolic effects.112-114 PPAR-gamma activating properties have also been reported for other angiotensin II receptor blocker drugs, but telmisartan is at least 10 times more powerful.112
Telmisartan has been shown in preclinical models to reduce weight gain, increase total energy expenditure, and increase expression of key mitochondrial enzymes in skeletal muscle better than a more popular drug in this class (Diovan®).7,13,39,115-117
Atherosclerosis remains a leading killer of Americans.118 Telmisartan functions by multiple mechanisms to protect against arterial occlusion,119-121 including increasing beneficial endothelial nitric oxide.39,122,123
Lastly, telmisartan appears to promote biochemical, biological, and metabolic effects that some researchers have suggested could boost athletic performance.112