why should i go for a colon cleansing diet?

Nowhere. Colon cleansing is a complete and utter ripoff.

Lose weight intelligently and slowly by intaking fewer calories than you expend.

There is really no short cut to losing weight. It takes time and effort on your part. Eat lots of vegetables and fruits, high fiber stuff and exercise that is the best ways you can lose weigh.

If you choose to try colon cleansing, take these imp precautions:
Check with your medical providers first, especially if you take any medications or have any health problems.
Stay well hydrated by drinking lots of fluids while undergoing colon cleansing to prevent dehydration.

One has to take precautions against imps? What planet did these bots come from?

why should i go for a colon cleansing diet?

because you're full of ****?