Just giving a senior a bottle of Ensure for dinner isn't enough. In fact, overreliance on these drinks can cause digestive issues like diarrhea. Lactose intolerance increases with age as well, therefore any nutritional shake made from milk proteins may cause flatulence, nausea, constipation or diarrhea.

What are the side effects of Ensure drink?

Both Ensure and Boost shakes may cause side effects, such as constipation, nausea, and flatulence. However, user reports indicate that most of them go away when consumed consistently. Other reported side effects include muscle cramps, irregular heartbeat, and shortness of breath.

Why does Ensure make me poop?

Try a nutritional supplement, such as Ensure^® Protein Max, which contains 3 g of scFOS fibre. ScFOS fibre has been shown to help maintain regular bowel movements. Stay well hydrated. Our bodies need water to digest food.