In our sedentary lifestyle we often ignore the basics of healthy living. I figured there were a few small changes I could do in my lifestyle that would help me. I tried these and they did make a difference. Maybe these will help you too. Tips for a Healthy Stomach Have Plenty of Fluids Ensure enough fluid intake. The simplest way is to drink two litres of water every day. Try sipping instead of gulping it down. Which means drink from a glass or a straw. In case you keep forgetting to drink water, use an app like I do.