L-carnitine acts as a vehicle in the process of fat decomposition, which can easily give people the illusion that L-carnitine is the key to fatty acid oxidation.
In fact, L-carnitine is only a means of delivery. How much fat the body can consume does not depend on L-carnitine. For example: if you want more coal (fatty acids) to burn, ideally, there are more coal (fatty acids), more trucks (L-carnitine), more efficient power plants (mitochondria), simply Increasing the number of trucks (L-carnitine) is just doing useless work.
In fact, the human body rarely lacks L-carnitine. Except for genetic diseases and chronic renal failure, there is no L-carnitine deficiency in normal people. Therefore, supplementing with L-carnitine alone cannot significantly reduce weight. effect.
Of course, some people may also think that if a large amount of L-carnitine is added, can it speed up the transport of fatty acids to mitochondria?
Experimental results show that this effect is very limited, probably only increased by 1% to 2%, this effect is almost negligible. Moreover, experiments have found that the reduction of L-carnitine in our body after exercise is very small, so small that in real life, you can ignore the effect of this value.
In summary
1. Without any exercise, taking L-carnitine alone will not have any effect on weight loss.
2. When cooperating with exercise (aerobic), the amount of exercise is very large, and the L-carnitine in the body cannot meet the needs, additional L-carnitine can be added to speed up fat consumption.
3. Even in the case of high-intensity exercise, L-carnitine can indeed speed up fat burning, but this effect is not unlimited, and it will not be as big as the slogan says.