Yogurt/Kefir
Roc has a swig of kefir almost every day. To maintain a healthy microbiome, eating yogurt or kefir almost daily has great benefits, especially if you ever use anti-biotics. When consumed during pregnancy, it can prevent allergies in offspring. It reduces the risk of cancer and obesity by properly populating our microbiomes, it keeps the digestive tract functional, and on and on. Reviewing the evidence, you are likely to see the benefit of starting each day with a bit of yogurt. See also probiotics.