Weight training is the best way to improve your metabolism by the excretion of waste by sweating and losing the undissolved fat content in your body.
The person whose calories intake is not as much as the bodybuilders , they can simply improve their metabolism by doing exercises like skipping, running ,jumping etc.
Water plays the vital role in the toning of metabolism as it simply purifies are blood, remove wastes from stomach, reduce stress from the working of our kidneys,tone up our liver .
If you know that what is good for your health and what is not, you can easily avoid the unutilized calories sources which will boost up your metabolism.
Our habits also made good contribution towards metabolism like avoiding excess of soft drinks, hard drinks, night outs, sleeping habits at 10 pm and wake up early in the morning and a brisk walk after dinner and in early morning also boost up our core to the best.