Low carb bread can also cause constipation if it is high in saturated fat. It is observed that low carb bread prepared from coconut flour contains a high amount of saturated fat which may lead to bowel movement issues. On the other hand, low carb bread prepared from almond flour can also trigger constipation in case of excess consumption. It's because of the presence of phytic acid in almond flour bread which is a well-known constipation factor.