July 10, 2026

How to Reduce Bloating Naturally: Why Cardio and Watermelon Can Help

Bloating is a common complaint that can leave you feeling uncomfortable, sluggish, and frustrated. Whether it’s caused by eating too much sodium, hormonal changes, or a sluggish digestive system, many people look for natural ways to relieve bloating quickly. Fortunately, two simple strategies—cardiovascular exercise and eating watermelon—may help reduce water retention and get you feeling like yourself again.

Get Moving: The Power of Cardio

Getting your heart rate up is one of the easiest natural ways to help reduce bloating. When you engage in steady, moderate cardio—such as a brisk walk, cycling, or an easy elliptical session—you support your digestive system and help your body eliminate excess fluid.

Exercise stimulates peristalsis, the natural muscle contractions that move food and gas through your digestive tract. This can help relieve trapped gas and reduce that uncomfortable, bloated feeling.

At the same time, cardio increases your core temperature, causing you to sweat. Sweating helps your body eliminate excess sodium, which is often responsible for water retention and temporary weight gain after a salty meal.

Hydrate to Flush: The Watermelon Effect

If your bloating is caused by water retention, watermelon can be a refreshing and effective choice. Made up of approximately 92% water, watermelon helps keep you hydrated, encouraging your body to release excess fluids instead of holding onto them.

Watermelon is also a good source of potassium, a mineral that helps balance sodium levels. By increasing potassium intake, your kidneys can more effectively flush out excess salt, helping reduce puffiness and water retention.

One Important Thing to Know

Although watermelon can be excellent for bloating caused by excess sodium, it isn’t the best choice for everyone. Watermelon contains fructose and fructans, which are classified as FODMAPs. For people with sensitive digestive systems or conditions like irritable bowel syndrome (IBS), these sugars can ferment in the gut and actually increase gas and bloating.

If gas is your primary issue rather than water retention, consider choosing lower-FODMAP fruits like strawberries or blueberries, while continuing with light to moderate exercise to support healthy digestion.

The Bottom Line

Cardio and watermelon can be simple, natural tools to help reduce bloating—especially when it’s related to water retention and excess sodium. Staying active, eating a balanced diet, and drinking plenty of water all play an important role in supporting healthy digestion and reducing bloating.

However, if you experience frequent, severe, or persistent bloating, it’s important to speak with your healthcare provider to rule out an underlying medical condition.

Looking to improve your overall health, fitness, or nutrition? Michele Nyquist, NASM Certified Personal Trainer at Transitions Physical Therapy & Wellness Center, can help you build a personalized fitness plan that supports your long-term health goals.


– Michele Nyquist, NASM Certified Personal Trainer