Fibre is found in plant-based foods, such as fruit vegetables, whole grains, nuts and seeds. A tablespoon or two of wheat bran, psyllium husks or ground flaxseed will meet your fibre requirements when your carbohydrate intake is limited on your diet. You don’t have to count the carbs in fibre because it has a negligible impact on blood sugar levels. Keep in mind: Fibre supplements must be taken with plenty of water.