{"product_id":"l-glutamine","title":"L-Glutamine","description":"\u003cp\u003e\u003cspan style=\"background-color: transparent; color: rgb(0, 0, 0);\"\u003eThe gut lining of endurance runners breaks down under sustained training load; \u003c\/span\u003e\u003cstrong style=\"background-color: transparent; color: rgb(0, 0, 0);\"\u003eL-glutamine provides the primary substrate for intestinal cell repair\u003c\/strong\u003e\u003cspan style=\"background-color: transparent; color: rgb(0, 0, 0);\"\u003e, directly addressing the GI distress that derails training blocks and race days.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"background-color: transparent; color: rgb(0, 0, 0);\"\u003eL-glutamine is the most abundant amino acid\u003c\/strong\u003e\u003cspan style=\"background-color: transparent; color: rgb(0, 0, 0);\"\u003e \u003c\/span\u003e\u003cstrong style=\"background-color: transparent; color: rgb(0, 0, 0);\"\u003ein the body and the principal fuel source for intestinal epithelial cells.\u003c\/strong\u003e\u003cspan style=\"background-color: transparent; color: rgb(0, 0, 0);\"\u003e Prolonged running lowers plasma glutamine levels and increases intestinal permeability, the mechanism behind runner's stomach, post-run GI distress, and elevated infection risk during heavy mileage. Supplementing with 3.15g daily supports gut barrier repair, immune function, and muscle tissue maintenance during high-volume training cycles.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"background-color: transparent; color: rgb(0, 0, 0);\"\u003eBuilt for marathon and ultra runners who experience GI distress during or after long runs, runners in high-mileage training blocks where immune suppression is a recurring problem, and anyone managing the gut integrity issues that come with sustained endurance training. Pairs especially well with colostrum for runners dealing with persistent runner's stomach.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis supplement prioritizes a straightforward approach by focusing on a single high-quality active ingredient. By eliminating complex fillers, the formula remains minimalist and functional for those who value transparency in their supplementation. The inclusion of precise scoop (5cc \/ 3.3g) ensures you get the exact amount needed for your daily routine without any guesswork. It’s a reliable choice for anyone looking to streamline their nutritional intake while maintaining a busy, active lifestyle.*\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"color: rgb(0, 0, 0); background-color: transparent;\"\u003eHow to Use\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli data-list=\"bullet\"\u003e\n\u003cspan class=\"ql-ui\"\u003e\u003c\/span\u003e\u003cstrong style=\"color: rgb(0, 0, 0); background-color: transparent;\"\u003ePost-run (daily maintenance):\u003c\/strong\u003e\u003cspan style=\"color: rgb(0, 0, 0); background-color: transparent;\"\u003e Mix one scoop (3.15g) into 6 - 8 oz of water or add to your post-run shake. Consistency matters more than timing - daily use over 3 to 4 weeks produces the most measurable gut and immune response.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-list=\"bullet\"\u003e\n\u003cspan class=\"ql-ui\"\u003e\u003c\/span\u003e\u003cstrong style=\"color: rgb(0, 0, 0); background-color: transparent;\"\u003eHigh-mileage weeks:\u003c\/strong\u003e\u003cspan style=\"color: rgb(0, 0, 0); background-color: transparent;\"\u003e Take within 30 minutes of finishing runs exceeding 90 minutes, when plasma glutamine depletion is highest.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-list=\"bullet\"\u003e\n\u003cspan class=\"ql-ui\"\u003e\u003c\/span\u003e\u003cstrong style=\"color: rgb(0, 0, 0); background-color: transparent;\"\u003eStack:\u003c\/strong\u003e\u003cspan style=\"color: rgb(0, 0, 0); background-color: transparent;\"\u003e Pairs with Colostrum as a combined gut integrity protocol - L-glutamine provides the direct cellular substrate; colostrum supplies the immunoglobulins and growth factors that support barrier function from a different pathway.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-list=\"bullet\"\u003e\n\u003cspan class=\"ql-ui\"\u003e\u003c\/span\u003e\u003cstrong style=\"color: rgb(0, 0, 0); background-color: transparent;\"\u003eMix note:\u003c\/strong\u003e\u003cspan style=\"color: rgb(0, 0, 0); background-color: transparent;\"\u003e Unflavored. Dissolves in water, juice, or protein shakes without affecting taste.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eIngredients: \u003c\/strong\u003eL-Glutamine (3.15g), Silicon Dioxide.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer's country: \u003c\/strong\u003eUSA\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct amount (oz\/lbs\/g): \u003c\/strong\u003e3.5 oz \/ 0.2 lbs \/ 98g\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGross weight (oz\/lbs\/g):\u003c\/strong\u003e 4.9 oz \/ 0.3 lbs \/ 139g\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSuggested use: \u003c\/strong\u003eAs a dietary supplement, adults mix one (1) scoop with 6-8 oz (177-237ml) of water or favorite beverage daily.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCAUTION:\u003c\/strong\u003e Do not exceed recommended dose. Pregnant or nursing mothers, children under the age of 18, and individuals with known medical conditions should consult a physician before using this or any dietary supplement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKEEP OUT OF THE REACH OF CHILDREN. DO NOT USE IF SAFETY SEAL IS DAMAGED OR MISSING. STORE IN A COOL, DRY PLACE.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"background-color: transparent; color: rgb(0, 0, 0);\"\u003eFAQ\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"background-color: transparent; color: rgb(0, 0, 0);\"\u003eQ: Does L-glutamine actually help with runner's stomach?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"background-color: transparent; color: rgb(0, 0, 0);\"\u003eA: Runner's stomach is partly driven by exercise-induced intestinal permeability - the gut lining loosens under endurance training stress, allowing bacteria and undigested particles into the bloodstream. L-glutamine is the primary fuel for the cells that maintain the gut barrier. At 3-10g daily, supplementation supports intestinal cell repair and reduces permeability markers. It works best as a daily protocol rather than a race-day intervention; allow 3-4 weeks of consistent use before assessing results.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"background-color: transparent; color: rgb(0, 0, 0);\"\u003eQ: When should a runner take L-glutamine, and what dose is supported by research?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"background-color: transparent; color: rgb(0, 0, 0);\"\u003eA: 3-10g daily is the range used in most endurance and gut-health research; this product delivers 3.15g per scoop. Post-run timing is preferred because plasma glutamine drops significantly after prolonged exercise, and the gut is most receptive to repair substrate in the hour following a hard effort. Runners in particularly high-mileage blocks (over 70 miles per week) may benefit from two servings daily - one post-run and one before sleep.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"background-color: transparent; color: rgb(0, 0, 0);\"\u003eQ: Can female runners specifically benefit from L-glutamine?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"background-color: transparent; color: rgb(0, 0, 0);\"\u003eA: Yes. Female runners managing high training loads alongside hormonal fluctuations face compounding immune suppression risk. L-glutamine supports both gut integrity and immune cell production - two systems under particular strain during heavy training. It stacks logically with colostrum and magnesium as part of a recovery protocol, particularly during marathon build phases or the two weeks following a goal race.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"background-color: transparent; color: rgb(0, 0, 0);\"\u003eQ: Is L-glutamine useful beyond gut health - does it help with muscle recovery?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"background-color: transparent; color: rgb(0, 0, 0);\"\u003eA: L-glutamine contributes to muscle recovery indirectly. It serves as a nitrogen shuttle in protein metabolism and helps preserve muscle glycogen following long efforts. However, its primary evidence base for runners is gut integrity and immune support, not direct muscle repair - for which protein (20-30g post-run) remains the more established intervention. Do not expect L-glutamine to replace protein; treat it as a gut and immune layer within a broader recovery stack.\u003c\/span\u003e\u003c\/p\u003e","brand":"Dark Mile Co.","offers":[{"title":"Default Title","offer_id":47116947652793,"sku":"JTP10GLUT","price":14.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0785\/4971\/3081\/files\/1777049310810-generated-label-image-0.jpg?v=1778177413","url":"https:\/\/darkmileco.com\/products\/l-glutamine","provider":"Dark Mile Co. ","version":"1.0","type":"link"}