Maintaining digestive health is crucial for overall well-being. Several supplements can support digestive health in various ways, such as improving gut flora, enhancing nutrient absorption, and relieving symptoms of gastrointestinal disorders. Here are some common supplements that promote digestive health:

1. Probiotics: Help maintain a healthy balance of gut bacteria, which is crucial for digestion and overall gut health.
2. Prebiotics: Serve as food for the beneficial bacteria in your gut, promoting their growth and activity.
3. Digestive Enzymes: Aid the breakdown of food into nutrients, making them easier for your body to absorb.
4. Fiber Supplements: Facilitate regular bowel movements and may prevent constipation.
5. L-Glutamine: Supports the intestinal lining and is beneficial for gut health, particularly for individuals with leaky gut syndrome.

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L-Glutamine plays a significant role in digestive health by maintaining the integrity of the intestinal barrier, supporting the growth of gut cells, and modulating the immune response in the gut. Here are some of the key benefits of L-Glutamine for digestive health:

1. Supports Intestinal Barrier Function: L-Glutamine is the primary fuel for the cells lining the intestines. It helps in maintaining the structure and integrity of the gut barrier[^1^][^2^].

2. Reduces Intestinal Permeability: L-Glutamine supplementation can help reduce intestinal permeability (commonly referred to as "leaky gut"), which is beneficial for preventing toxins and pathogens from entering the bloodstream[^3^].

3. Enhances Gut Repair and Regeneration: It promotes the repair and regeneration of the intestinal lining, which can be particularly beneficial for those with conditions like irritable bowel syndrome (IBS), inflammatory bowel disease (IBD), and other gastrointestinal disorders[^4^].

4. Modulates Immune Function: L-Glutamine plays a role in enhancing the immune function of the gut by supporting the production of secretory immunoglobulin A (SIgA) and other immune factors[^5^].

5. Alleviates Symptoms of IBS: Supplementing with L-Glutamine has been found to be effective in reducing symptoms of IBS, especially in those with diarrhea-predominant IBS[^6^].

If you are interested, I can search for specific products containing L-Glutamine suitable for supporting digestive health. Please let me know if you would like to proceed with finding product recommendations.

While I can provide information on supplements, diagnosing medical conditions is beyond my scope. Symptoms such as stomachache and runny nose can be linked to various conditions, ranging from mild to more serious ailments. Some possibilities include:

1. Food Allergies or Intolerances: These can cause gastrointestinal symptoms like stomach aches and may also trigger a runny nose due to immune responses.
2. Gastrointestinal Infections: Viral or bacterial infections can cause stomach pain and systemic symptoms, including a runny nose.
3. Irritable Bowel Syndrome (IBS): Although typically not associated with a runny nose, the stress or anxiety related to IBS could potentially cause nasal symptoms.

It's important to consult with a healthcare professional for a proper diagnosis.

If you have dietary or digestive health concerns, supplements like probiotics, prebiotics, digestive enzymes, and L-Glutamine may support gut health. However, please see a doctor to address your current symptoms and for personalized recommendations. Would you like more information on supplements that support gut health?