You can also become bulletproof by encouraging the growth of certain bacteria in your digestive tract. The microbes in your intestine – your gut biome – play an important role in your health and your diet has a big impact on them.
Studies of mice have provided a great deal of insight into the ways our bodies gain and lose weight. Your weight isn’t just determined by the calories you consume or burn – it’s also affected by the bacteria in your gut.
If bacteria from the guts of obese mice is inserted into thin mice, they overeat by ten percent and become more resistant to insulin. And like mice, heavy and thin humans also have very different gut bacteria.
People who are naturally thin have more bacteria from the bacteroidetes phylum, also called thin people bacteria.
You can generate more of it by eating foods that contain polyphenols. They’re found in brightly colored vegetables like peppers and carrots. Coffee is the richest source of polyphenols, however. Chocolate contains polyphenols too.
You should also eat more resistant starches, like white rice and starchy vegetables such as sweet potatoes, carrots and pumpkins. These starches can radically change your gut biome.
These starches are “resistant” because they’re more resistant to digestion. Your body can’t break them down, so you can consume them without causing your insulin levels to rise, which would result in blood sugar problems.
Because they can’t be broken down, resistant starches are still intact when they arrive in your colon. Several studies have found that helpful bacteria in the colon thrive on resistant starches and produce a short-chain fatty acid called butyrate when they’re digested. Butyrate is vital to a healthy gut and brain, which is another reason that butter is so good for you.
Resistant starches are also found in less common foods, like green banana flour, plantain flour and potato starch.