It is well known that eating fruits, vegetables and whole grains are important for good health because they contain dietary fiber and other healthy substances1.

The dietary fiber can be fermented by healthy bacteria in our gut to produce short chain fatty acids (acetic, propionic and butyric acids) that help the neuroendocrine immune system and help make vaccines more successful2.

At the same time, eating sugar, high fructose corn syrup, meat, saturated or trans fats and drinking sweetened beverages is unhealthy, partly because it helps to produce an unhealthy gut microbiome.

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