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Gastrointestinal Health Specialist

Essential Nutrition -  - Registered Dietitian Nutritionist

Essential Nutrition

Registered Dietitians, Nutritionists, Emotional Eating & Eating Disorder Specialists located at Foothills and Arapahoe in Boulder and Federal Heights in Denver, CO.

If you struggle with a gastrointestinal disorder, you’re not alone. It’s estimated that 11% of Americans suffer from a chronic digestive disease, and that number increases to as high as 35% in older adults. Many people with gastrointestinal problems visit Lisa Lanzano, MS, RDN, and the team at Essential Nutrition in Boulder and Denver, Colorado, where they find the support and relief they need because nutrition plays a powerful role in gastrointestinal health and wellness. If you suffer from uncomfortable gastrointestinal symptoms, call one of the offices or book an appointment online today.

Gastrointestinal Health Q & A

How is nutrition related to gastrointestinal health?


Nutrition and your gastrointestinal (GI) health are closely connected. Your stomach breaks down food, then the small intestine digests and absorbs nutrients. Your large intestine, also called the colon, is home to trillions of gut bacteria, collectively called the microbiome.

Gut bacteria fill extensive and essential roles in your health, from supporting your immune system and regulating your weight to producing vitamins and preventing gastrointestinal diseases.

All the vital roles filled by your GI tract are only possible with proper nutrition. Your gut bacteria are directly affected by the foods you eat, especially fiber. You can also prevent and treat numerous gastrointestinal diseases with foods containing specific nutrients.

What gastrointestinal conditions improve with dietary changes?

Dietary changes are often the first line of treatment for GI problems such as:

  • Leaky gut
  • Celiac disease
  • Peptic ulcers
  • Lactose intolerance
  • Diverticular disease
  • Gastroesophageal reflux disease
  • Diarrhea and constipation
  • Irritable bowel syndrome
  • Small intestinal bacterial overgrowth
  • Inflammatory bowel disease (Crohn’s disease and ulcerative colitis)

A change in diet often improves inflammatory disease in the organs that serve the GI tract. As one example, treatment for pancreatitis (inflammation of the pancreas) often includes a low-fat diet.

What dietary changes promote my gastrointestinal health?

Your Essential Nutrition dietitian reviews your medical history and carefully evaluates your nutritional status. You undergo advanced testing to identify your specific nutrient deficiencies.

Your dietitian may also recommend nutrigenomic testing to evaluate how your individual genetic makeup affects the way your body digests and uses nutrients. Nutrigenomics allows your provider to develop an eating plan that works for your unique gene-diet interactions.

Every patient needs a plan that fits their GI problem, so the Essential Nutrition team recommends a vast array of changes, ranging from simply adding or eliminating one or two elements and avoiding inflammatory foods, to a complete overhaul of your eating habits.

Your dietitian may also teach you one of several standard gastroenterology diets, such as:

  • Low-FODMAP diet
  • Gastroparesis diet
  • Gluten-free diet
  • High-fiber diet
  • Low-fiber diet
  • Low-oxalate diet
  • Low-sodium diet
  • Lactose-free diet

When planning the best dietary intervention for your gastrointestinal health, the team at Essential Nutrition collaborates with one another and their medical advisors, so you receive the most current, medically sound, and effective treatments. 

If you need help with your GI health, call Essential Nutrition or book an appointment online.