• Functional foods that have prebiotic fiber, probiotics, or fermented compounds help promote better gut health.
• Asparagus, avocados, bananas, and other fiber-rich foods may help support digestion and bowel regularity.
• Fermented foods such as yogurt and kimchi may benefit the good bacteria in your gut.

Functional foods offer potential health benefits beyond just basic nutrition. Some functional foods—particularly those rich in fiber, probiotics, and fermented compounds—may help support digestion, bowel regularity, and a healthy collection of gut bacteria.

1. Yogurt

Many types of yogurt contain probiotics, which are live microorganisms that may provide health benefits (when consumed in adequate amounts).

Probiotics found in yogurt help support digestion and they can contribute to a healthy gut microbiome, or the collection of bacteria living in your gastrointestinal tract. Your gut microbiome contributes to immune health, supports communication between the gut and brain, and may help lower your disease risk.

For a boost in probiotics, look for yogurts labeled "live and active cultures," which indicates the presence of beneficial bacteria such as Lactobacillus and Bifidobacterium.

How to add it to your diet: Yogurt can be enjoyed on its own or paired with fruit, nuts, or seeds—these toppings add extra fiber, which further supports gut health.

2. Sauerkraut 

Traditional sauerkrauts contain a variety of lactic acid bacteria, which develop during the natural fermentation process. They may support gut health by increasing the concentration and variety of good bacteria in your digestive tract. Plus, they produce beneficial compounds called short-chain fatty acids, which have been associated with improvements in inflammation, gut barrier health, and more.

However, not all fermented foods contain probiotics—for a food to be considered a probiotic, there must be research proving that its specific bacterial strain has health benefits. Because traditional sauerkraut is not standardized or tested for specific types of bacteria, it doesn't technically meet that definition.

Additionally, many sauerkrauts are pasteurized, meaning they contain no live bacteria. However, some research suggests that even pasteurized bacteria may be good for your gut.

How to add it to your diet: Sauerkraut's tangy flavor works well in sandwiches, salads, or grain bowls. 

3. Bananas

Especially when they're a bit underripe, bananas are a good source of resistant starch. This fiber acts as a prebiotic, feeding beneficial gut bacteria in the colon and supporting the production of short-chain fatty acids, which boost your gut and overall health.

Though it's not a long-term benefit, bananas are also a good choice if you're dealing with an upset stomach. These fruits can prompt the body to produce more mucus in the stomach, which creates a greater barrier between stomach acids that might be causing issues like heartburn or stomach pain.

How to add them to your diet: Bananas can be added to smoothies, yogurt bowls, oatmeal, or eaten alone as a snack. 

4. Asparagus

Asparagus is a source of inulin, a type of prebiotic fiber that helps nourish beneficial gut bacteria. Prebiotic fibers support the growth and activity of gut bacteria linked to better digestive health.

This vegetable is also a good source of vitamin K—four cooked asparagus spears contain 30 micrograms, or 25% of the Daily Value. Though more research is needed, vitamin K may help reduce gut inflammation, improve the gut microbiome, and more.

How to add it to your diet: Asparagus can be roasted, grilled, steamed, or added to salads and pasta dishes.

5. Avocados

Nutrient-dense and rich in fiber, avocados may support gut health by fueling the bacteria that live in your gastrointestinal tract.

In one 2021 study, researchers followed people with overweight or obesity who ate an avocado every day for 12 weeks. Data later showed that the participants had greater diversity of bacteria and a higher abundance of beneficial bacteria in their guts.

How to add them to your diet: Avocados can be added to toast, salads, grain bowls, or used as a creamy base for dressings and dips.

6. Berries

Berries like blueberries, strawberries, raspberries, and blackberries are rich in plant compounds called polyphenols and fiber.

Neither is fully digested in the stomach, meaning berries could help support your gut health. The fiber in berries helps promote healthier digestion, while polyphenols could play a role in creating a healthier gut microbiome, though more research is needed.

How to add them to your diet: Berries can be added to yogurt, oatmeal, smoothies, or eaten as a snack.

7. Bone Broth

Made by simmering animal bones in water for an extended period of time, bone broth contains substantial amounts of collagen, minerals, and amino acids (protein building blocks).

The amino acids and minerals in bone broth have been linked to possible gut health benefits, including a reduction in gut inflammation and an improvement in gut barrier function. In a study of mice, bone broth was shown to lower inflammation levels and improve ulcerative colitis (UC) symptoms, though more research in humans is needed to confirm these effects.

How to add it to your diet: Bone broth can be enjoyed on its own or used as a base for soups, cooked grains, and sauces.

Building a More Gut-Friendly Diet

Supporting gut health does not require eating a single “superfood.” Instead, regularly consuming a variety of fiber-rich and fermented foods may help nourish beneficial gut bacteria and support digestion over time.

Try incorporating one or two gut-friendly foods into meals you already enjoy—for example, make a berry and yogurt bowl for breakfast, or include an avocado in your lunchtime salad.

When you're adding more fiber-rich foods to your diet—such as bananas, asparagus, avocado, or berries—make sure to do so gradually to reduce the likelihood of digestive discomfort.

Source link

Kristina Dawson