Hi A.,
I'm not personally familiar with this particular product but weight loss is completely about nutrition. A colon cleanse will help because nutrition is absorbed through the colon wall and if the colon wall is not clean then those vitamins and minerals can't get through.....
I started my husband on an absorbable multivitamin/mineral complex 5 years ago and he lost 110 pounds. He lost the first 60 pounds without changing diet or activity level. He has kept the weight off because he is healthy. Malnutrition is not just a skinny person with a distended stomach. Obesity, and even just 20 pounds over weight, can be a sign.
The vitamin that I used/use is guaranteed to absorb and it has done other things for his health than simply the weight loss. I also recommended it to my sister-in-law (lost 15 pounds) and my husband's best friend (lost 50 pounds) as well as other friends. I didn't even mention that the weight would adjust, simply that it would help them get healthy and all but one person lost weight. That person actually gained weight because she was terribly skinny and looked like you could break her in half. She gained ten pounds and feels great. Our bodies are meant to be balanced.
Hope I helped!
M.