Best Supplements for Gut Health: Probiotics, Fiber & More

Your gut influences everything from digestion to mood and immunity, so it is no surprise the supplement shelves are packed with "gut health" products — most of them hype. We cut through it and picked the ones worth your money. First, see where you stand with our free Gut Health Score quiz, and read our complete guide to resetting your gut.

1. Best probiotic

Bio-K+ Probiotics is our pick for reseeding beneficial bacteria — especially useful after antibiotics, travel or a bout of digestive upset. A quality probiotic complements a fiber-rich diet rather than replacing it.

2. Best all-in-one gut complex

Dr. Emil Total Gut Complex combines prebiotics, probiotics and postbiotics in one — a convenient option if you want to cover several bases while you dial in your diet.

3. Best for fiber (the part most people miss)

Fiber is the fuel your good microbes thrive on, and most people fall short. New Chapter Organic Fiber Gummies is an easy way to top up — though whole foods should always come first.

The most important thing to know

No supplement fixes a poor diet. The biggest lever for gut health is a wide variety of fiber-rich, plant-based foods and fermented foods, plus good sleep and stress management. Use supplements to support that foundation. To build it properly, Gut Health Made Simple walks you through a full reset, and Gut Health: Nutrition for Energy & Focus goes deeper on eating for long-term vitality.