DNA

Simply increases metabolism but there are some benefits to be had from sluight CV performance gains.

If Diet and Cardio are sorted then you don't need to be taking these as obviously you would be burning enough cals to either stay lean or promote some fat loss.

As a performance enhancer it's ok but for fat loss I can see little benefit as continued use will only lead to dependancy, Adrenal fatique, increased levels of Cortisol - all of which will promote the body to gain and hold onto body fat.