About 100 trillion bacteria live inside your digestive system. That may sound alarming, but this bacteria is essential to your health. It lines your intestines and aides your body in digestion. More recently, science has revealed that a healthy and diverse collection of gut bacteria, also known as your "microbiome" can improve immune function, lower inflammation and even protect you from an array of chronic conditions and diseases.

Many experts believe that it's not the presence or absence of one particular type of bacteria that creates a healthy microbiome, but rather the diversity of bacteria. Daily lifestyle habits, especially dietary choices, can help ensure you're maintaining a healthy and diverse microbiome.

Here are some researched-backed tips that are good for your gut:

Consume prebiotic foods. Prebiotics are types of dietary fiber and they're essential for a healthy digestive system. Potent prebiotic foods include almonds, asparagus, bananas, whole grains, mushrooms, legumes, garlic and onions.

Have some yogurt. Probiotics are live, "good" bacteria and yeasts that are good for your overall health, but especially your digestive system. One of the best sources of probiotics is yogurt. It has good bacteria like lactobacillus. Look for "live or active cultures" on the label to ensure the yogurt you choose has them.

Don't overuse antibiotics. Overusing antibiotics can significantly decrease good gut bacteria. Keep in mind that you don't need antibiotics for conditions like the common cold.