Prebiotics are specialized plant fibers. They act like fertilizers that stimulate the growth of healthy bacteria in the gut. Prebiotics are found in many fruits and vegetables, especially those that contain complex carbohydrates, such as fiber and resistant starch.

Is apple cider vinegar a prebiotic?

It doesn't stop there: Apple cider vinegar also has prebiotics from the fermented apples. Those prebiotics contain pectin, an essential for good digestion, which helps foster the growth of probiotics in the gut, Warren says.

What makes a food a prebiotic?

Prebiotics are foods that promote the growth of beneficial bacteria in the gut. They are mainly fiber or complex carbs that human cells cannot digest. Instead, certain species of bacteria in the gut break them down and use them for fuel.