The best are the flaky müeslis without added sugar:combining whole grains with dried fruits and oilseeds, they slowly distil their energy in the body and provide B vitamins and various minerals (iron, magnesium, etc.). At Bjorg, Jordan’s, Alpen Original… Good too, oatmeal (Bjorg, Quaker Oats…) for their carbohydrate and fiber intake. But it's not really a "pleasure" breakfast:so we sprinkle these dry cereals with semi-skimmed milk and add fruit (fresh or dried).
That is to say petals, grains or balls of corn, rice or wheat, puffs, chocolate (Miel Pops, Chocapic, Frosties…). Rich in sugars, they raise blood sugar and promote cravings 1 to 2 hours after eating them. We also avoid crueslis, these cereals for adults that crunch (especially those with chocolate, very caloric and stuffed with added sugars). And we don't fall into the trap of “line” ranges (Special K, Fitness, etc.) which, although moderately caloric on paper, are too quickly digested (hello, 11 a.m. cravings). And big warning about cereal "to-go bars", in which glucose/fructose syrup is often added to make them stick together.
Rich in fiber (All Bran Kellogg's, Fruits &Fibres, Weetabix, etc.) made from wheat bran or whole wheat, low in sugar and with a low glycemic index. In moderation if you have irritable bowels.
Thanks to the dietician Angélique Houlbert, author of "100 GI foods at will", Ed. Thierry Souccar.