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Low FODMAP Diet

Low FODMAP Diet

The Low FODMAP Diet and Your Genetic Gut Health

The Low FODMAP diet is a specialized nutritional therapy designed to support the 10-15% of people managing Irritable Bowel Syndrome (IBS). By reducing fermentable carbohydrates that can trigger gas, bloating, and discomfort, this plan aims to improve your digestive quality of life while adhering to strict gluten-free and low-fodmap standards. Your PlexusDx report offers a personalized layer to this approach by highlighting specific genes that influence how your body handles food. For instance, variations in the HLA gene family can indicate a genetic predisposition to gluten sensitivity, reinforcing the need for the gluten-free aspect of this plan. Additionally, the SI (sucrase-isomaltase) gene affects how well you break down sugars and starches—digestive issues often mistaken for general FODMAP sensitivity—while the MTHFR gene provides insight into your body's ability to process B vitamins, which are critical to monitor on this restrictive diet.

This program is built on evidence-backed principles to ensure you receive complete nutrition despite dietary restrictions. Research indicates that low-FODMAP diets can inadvertently reduce intake of fiber and micronutrients; therefore, this meal plan strategically includes 30 grams of daily fiber from tolerated sources and ensures adequate iron, antioxidants, and B vitamins. Recommendations based on this evidence include:

  • Prioritize Soluble Fiber: Consume up to 30g of fiber daily from low-FODMAP sources like oats, green beans, and spinach to improve glycemic control and digestive health without triggering symptoms.
  • Focus on Nutrient-Dense Proteins: Obtain 20% of your daily calories from high-quality proteins (chicken, turkey, eggs) and healthy fats (salmon, nuts, seeds) to maintain muscle mass and steady energy.
  • Boost Antioxidant Intake: Counteract potential nutrient gaps by eating foods rich in Vitamin A, E, and C, such as kiwi, squash, and nuts, to support immune function.
  • Pair Iron with Vitamin C: Enhance the absorption of iron from animal sources by consuming them alongside Vitamin C-rich fruits or vegetables to prevent deficiency.
  • Monitor B Vitamins: Ensure sufficient Riboflavin and Thiamin intake through included foods like rice, spinach, and eggs to support energy metabolism and nervous system health.

Ready to customize your weekly menu? Click the button below to open your PlexusDx meal planning tool. If you see a meal that doesn't fit your preferences or current needs, you can easily replace it using the "Swap" feature. Follow these steps to find alternatives that match your specific genetic insights and filter tags:

  1. Locate the meal you want to change on your planner.
  2. Click the three dots associated with that meal card.
  3. Select "Swap recipe" from the dropdown menu.
  4. Choose "Swap" to change just that meal, or "Swap all" to replace it for the whole week.
  5. Keep clicking "Swap" to cycle through alternative recipes until you find one that matches your plan rules (like GF/DF/egg-free).

PlexusDx provides educational information about genetic predispositions only. This content is not medical advice. Always discuss genetic findings, test results, symptoms, and treatment decisions with your healthcare provider or an allergist to determine appropriate care for your situation.