Nutritionist says one snack slashes heart and bowel disease riskMolly Cunningham says modern diets are making it difficult for us to hit the targetView Image You need to eat more fibreA nutritionist says one snack can double your daily dose of fibre as research shows just 4% of UK adults have enough in their diet. Fibre plays a crucial role in digestion and overall wellbeing and helps reduce the risk of bowel disease, Type 2 diabetes and cardiovascular disease. R ather than overhauling meals, Molly says one of the easiest wins is building fibre into everyday snacks. The warm stewed apple, crunchy granola, and nuts create that classic crumble taste, but with far more fibre and balance. The creamy yoghurt or light cream cheese with fresh berries and flaxseed gives a lovely mix of sweetness and crunch.