David: I had constant problems with acne, leaky gut, and digestive upset. I read The Microbiome Solution a year ago, reduced meat to once a month, eliminated sugar and grains, and my meals now consist of a wide variety of vegetables, legumes, wild plants, fruits, and seeds, although most of what I consume is vegetables and fruits. My digestion has stabilized and my acne is gone! I feel great and rested like never before. However, when I exercise, after about 30 minutes I run out of energy and feel weak and tired. Yet, the next morning when I get out of bed there are no signs of fatigue whatsoever. Any advice on why I feel so fatigued when I exercise and how to fix it? Dr. Chutkan: David, when we completely eliminate grains from the diet, we are depriving our bodies (and microbes!) of complex carbohydrates that can be an important energy source for…
