Sneaky Causes of Fluid Retention

You’re watching your salt and taking your meds, so why are you still swelling? Here’s what else might be at play.

A woman in a green T-shirt reads her prescription label on an orange pill bottle.

Swelling in the feet, legs, or abdomen can be a sign of fluid retention, a common symptom of heart failure. But even if you’re following your care plan, there may be other things contributing to the problem. 

Hidden triggers may include: 

  • Healthy” convenience foods like canned soups, frozen meals, or deli meat — often high in sodium 
  • Over-the-counter meds, especially NSAIDs like ibuprofen 
  • Weather changes, especially hot, humid days 
  • Inconsistent medication use or skipped doses 

What to do: 

  • Read labels carefully and look for low-sodium options 
  • Ask your doctor about safer pain relief options 
  • Weigh yourself daily, as small changes can be an early warning sign 
  • Write down your symptoms so you can track patterns and share with your care team 

If you notice swelling that’s new or worsening, check in with your provider. A few simple changes may help you feel better and avoid more serious complications.