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The following are all foods you should feel welcome to eat freely (unless, of course, you know they bother your stomach): Alliums (Onions, Leeks, Garlic, Scallions): This category of foods, in particular, is an excellent source of prebiotics and can be extremely nourishing to our bugs. If you thought certain foods were lacking in flavor, try sautéing what you think of as that “boring” vegetable or tofu with any member of this family and witness the makeover. Good-quality olive oil, sesame oil, or coconut oil can all help with the transformation of taste. *Beans, Legumes, and Pulses: This family of foods is one of the easiest ways to get a high amount of fiber in a small amount of food. You know how beans make some folks a little gassy? That’s a by-product of our bacterial buddies chowing down on that chili you just consumed for dinner. Don’t get stuck in a bean rut. Seek out your bean aisle or peruse the bulk bin at your local grocery store and see if you can try for three different types of beans each week. Great northern, anyone? Brightly Colored Fruits and Vegetables: Not only do these gems provide fiber, but they are also filled with polyphenols that increase diversity in the gut and offer anti-inflammatory compounds that are essential for disease prevention and healing. Please note that white and brown are colors in this category—hello, cauliflower, daikon radish, and mushrooms! Good fungi are particularly anti-inflammatory, rich in beta-glucans, and a good source of the immune-supportive vitamin D. Remember that variety is key here. Just because broccoli gets a special place in the world of superfoods doesn’t mean that you should eat only broccoli. Branch out: How about trying bok choy, napa cabbage, or an orange pepper? Include a spectrum of color on your plate and make sure that some of these vegetables are periodically eaten raw or lightly steamed, which may have greater benefits to your microbiome. Herbs and Spices: Not only incredibly rich in those anti-inflammatory polyphenols, this category of foods also has natural digestive-aid properties that can help improve the digestibility of certain foods like beans. They can also stimulate the production of bile, an essential part of our body’s mode of breaking down fat. Plus, they add pizzazz to any meal. Nuts, Seeds, and Their Respective Butters: This family of foods provides fiber, and it is also a good source of healthy and anti-inflammatory fats that help keep the digestive tract balanced and nourished. It’s time to step out of that almond rut and seek out new nutty experiences. Walnuts have been shown to confer excellent benefits on the microbiome because of their high omega-3 and polyphenol content. And if you haven’t tasted a buttery hemp seed, also rich in omega-3s and fantastic atop oatmeal, here’s your opportunity. Starchy Vegetables: These hearty vegetables are a great source of fiber and beneficial plant chemicals. When slightly cooled, they are also a source of something called resistant starch, which feeds the bacteria and enables them to create those fantabulous short-chain fatty acids. These include foods like potatoes, winter squash, and root vegetables like parsnips, beets, and rutabaga. When was the last time you munched on rutabaga? This might be your chance! Teas: This can be green, white, or black tea, all of which contain healthy anti-inflammatory compounds that are beneficial for our microbes and overall gut health. It can also be herbal tea, which is an easy way to add overall health-supportive nutrients to our diet without a lot of additional burden on our digestive system. Unprocessed Whole Grains: These are wonderful complex carbohydrates (meaning fiber-filled), which both nourish those gut bugs and have numerous vitamins and minerals that support our health. Branch out and try some new ones like millet, buckwheat, and amaranth. FOODS TO EAT IN MODERATION
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Mary Purdy (The Microbiome Diet Reset: A Practical Guide to Restore and Protect a Healthy Microbiome)