Are people overweight thirty or more pounds more likely to get cancer or is there no clinical trial connection?

Some cancers: Colon and breast can cancer may be more common in overweight people. Visit this site for more info. http://www.cancer.gov/about-cancer/causes-prevention/risk/obesity/obesity-fact-sheet For good health - Have a diet rich in fresh vegetables, fruits, whole grains, low fat milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex.

There is a connecton: Excessive weight does increase the risk for developing Cancer. So you should work hard to reduce your weight. It can be done by cutting down on your daily food intake(Calories) and if possible do exercise daily. A brisk walk at any opportunity to walk will do you much good. Also be mindful and reduce fat in your diet and cut down on eating meats and Sugars/sweets.