But there is no mention of the parent-comments main point „When I eat carbs, I put on weight“ .... which might be an indirect effect of a higher blood glucose level (more hungry) ...but definitely not a direct effect.
They use the post-prandial glucose response (PPGR) as a surrogate marker for how the body absorbs and metabolises food. Spikes in glucose levels after a meal are considered 'bad' as they cause large excursions in insulin secretion, and are associated with diabetes, heart disease and obesity.
They found a wide range of inter-personal variability in how particular foods affect blood glucose levels after a meal. Some people could eat a pizza for example, and the PPGR would hardly budge, whereas for others it would surge. The gut microbiome seemed to be important to this response. I believe the scientists have formed a company which plans to make personalised nutrition suggestions based on microbiome analysis, among other things.
See also here: http://well.blogs.nytimes.com/2016/01/11/a-personalized-diet...
You eat the wrong kind of carbs. The kind of carbs you eat have ZERO fiber...so of course you will be hungry. Eat a bowl of oatmeal (100g) with a banana and milk, add a little cinnamon, heat on the stove or in the microwave and you are set for the next 8 hours.