Why am I experiencing digestion changes since eating more whole grains?

Whole grain is a good source of fibre, important for good health. Government guidelines advise adults should eat at least 30g of fibre a day but most are only eating about 18g a day. Some people note discomfort (e.g. constipation, bloating, diarrhea, changes in stools / poo) when they suddenly increase fibre intake, particularly fibre from beans and pulses. This may be due in part to the increased roughage in the gut and also fibre stimulates good bacteria in the gut, which in turn may produce more gases. Increasing fibre gradually will help alleviate discomfort as the gut is really good at adapting. And try having a mix of insoluble fibre, which adds bulk (e.g. wheat), and soluble fibre, which softens stools (e.g. oats). Also, drink plenty of water.

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