What is key for gut health is fiber. To make it easy, for every high protein meal or snack you have, make sure fiber is included, avg woman fiber intake should be about 25 g/day which you can easily get with whole wheat bread and a few servings of fruits/veggies. Another important thing for gut health is feeding and helping your gut microbiota with prebiotics and probiotics, easily found in drinks or foods like yogurts, kimchi, etc

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