Low FODMAP Diet
What is it? The Low FODMAP diet is a three-phase elimination diet that restricts fermentable oligosaccharides, disaccharides, monosaccharides, and polyols. These short-chain carbohydrates are poorly absorbed in the small intestine and can cause digestive symptoms in sensitive individuals.
Who Should Follow This Diet?
- Irritable Bowel Syndrome (IBS)
- Small Intestinal Bacterial Overgrowth (SIBO)
- Functional bloating
- Abdominal pain and cramping
Key Foods to Include
- Rice, quinoa, oats
- Bananas, blueberries, grapes
- Carrots, spinach, zucchini
- Chicken, fish, eggs
- Lactose-free dairy
Foods to Limit or Avoid
- High-FODMAP fruits (apples, pears)
- Onions and garlic
- Wheat and rye
- Legumes and beans
- High-lactose dairy
Potential Benefits
- Reduces bloating and gas
- Decreases abdominal pain
- Improves stool consistency
- May reduce IBS symptoms by 50-80%
Gluten-Free Diet
What is it? A gluten-free diet eliminates all foods containing gluten, a protein found in wheat, barley, rye, and triticale. This diet is essential for people with celiac disease and may help those with non-celiac gluten sensitivity.
Who Should Follow This Diet?
- Celiac disease
- Non-celiac gluten sensitivity
- Wheat allergy
- Dermatitis herpetiformis
Key Foods to Include
- Rice, quinoa, corn
- Potatoes, sweet potatoes
- Fruits and vegetables
- Nuts and seeds
- Gluten-free grains (buckwheat, amaranth)
Foods to Limit or Avoid
- Wheat, barley, rye
- Most breads and pastas
- Beer and malt beverages
- Processed foods with gluten
- Cross-contaminated foods
Potential Benefits
- Prevents intestinal damage (celiac)
- Reduces inflammation
- Improves nutrient absorption
- Eliminates digestive symptoms
Mediterranean Diet
What is it? The Mediterranean diet emphasizes whole foods, healthy fats, lean proteins, and abundant fruits and vegetables. It's associated with reduced inflammation and improved digestive health.
Who Should Follow This Diet?
- General digestive health
- Heart disease prevention
- Type 2 diabetes management
- Inflammatory bowel disease (supportive)
Key Foods to Include
- Olive oil and olives
- Fatty fish (salmon, sardines)
- Nuts and seeds
- Whole grains
- Abundant fruits and vegetables
Foods to Limit or Avoid
- Processed meats
- Refined sugars
- Trans fats
- Excessive red meat
- Highly processed foods
Potential Benefits
- Reduces inflammation
- Supports heart health
- May reduce IBD symptoms
- Provides antioxidant protection
Important Considerations: Generally safe for long-term use. May need cultural adaptation. Focus on whole foods. Regular physical activity recommended.
Specific Carbohydrate Diet (SCD)
What is it? The Specific Carbohydrate Diet (SCD) eliminates complex carbohydrates and focuses on simple sugars that are easily absorbed. It's designed to starve harmful bacteria in the gut while nourishing beneficial ones.
Who Should Follow This Diet?
- Crohn's disease
- Ulcerative colitis
- Small intestinal bacterial overgrowth
- Chronic diarrhea
Key Foods to Include
- Fresh meats and fish
- Eggs
- Most vegetables
- Certain fruits (bananas, berries)
- Honey (in moderation)
Foods to Limit or Avoid
- All grains and starches
- Processed foods
- Most dairy products
- Sugars (except honey)
- Legumes and beans
Potential Benefits
- May reduce IBD inflammation
- Improves nutrient absorption
- Supports beneficial gut bacteria
- Reduces digestive symptoms
Anti-Inflammatory Diet
What is it? An anti-inflammatory diet focuses on foods that reduce inflammation in the body. It emphasizes omega-3 fatty acids, antioxidants, and whole foods while avoiding processed foods and inflammatory triggers.
Who Should Follow This Diet?
- Inflammatory bowel disease
- Rheumatoid arthritis
- Chronic inflammation
- Autoimmune conditions
Key Foods to Include
- Fatty fish (salmon, mackerel)
- Berries and cherries
- Leafy greens
- Nuts and seeds
- Turmeric and ginger
Foods to Limit or Avoid
- Processed foods
- Refined sugars
- Trans fats
- Excessive alcohol
- Inflammatory oils
Potential Benefits
- Reduces systemic inflammation
- Supports immune function
- May improve IBD symptoms
- Promotes overall health
Important Considerations: Generally safe and sustainable. Focus on whole foods. May need individual adjustments. Regular monitoring recommended.
Elimination Diet
What is it? An elimination diet systematically removes potential trigger foods from the diet for a period, then gradually reintroduces them to identify which foods cause symptoms.
Who Should Follow This Diet?
- Food sensitivities
- Allergic reactions
- Eczema and skin conditions
- Migraine triggers
Key Foods to Include
- Rice and rice products
- Lamb and chicken
- Most vegetables
- Limited fruits
- Water and herbal teas
Foods to Limit or Avoid
- Common allergens (dairy, eggs, nuts)
- Gluten-containing foods
- Soy products
- Citrus fruits
- Nightshade vegetables
Potential Benefits
- Identifies food triggers
- Reduces allergic reactions
- Improves skin conditions
- Customizes individual diet
Low Residue Diet
What is it? A low residue diet limits foods that leave undigested residue in the colon, reducing the frequency and volume of bowel movements. It's often used during digestive flare-ups.
Who Should Follow This Diet?
- Crohn's disease flare-ups
- Ulcerative colitis flare-ups
- Diverticulitis
- Post-surgical recovery
Key Foods to Include
- White bread and pasta
- Refined cereals
- Well-cooked vegetables
- Tender meats
- Low-fiber fruits
Foods to Limit or Avoid
- Raw fruits and vegetables
- Whole grains
- Nuts and seeds
- Legumes and beans
- High-fiber foods
Potential Benefits
- Reduces bowel movements
- Decreases abdominal cramping
- Allows digestive rest
- Supports healing during flares
Lactose-Free Diet
What is it? A lactose-free diet eliminates or significantly reduces lactose, the sugar found in milk and dairy products. This diet is necessary for people with lactose intolerance, who lack the enzyme lactase needed to digest lactose.
Who Should Follow This Diet?
- Lactose intolerance
- Secondary lactose intolerance
- Congenital lactase deficiency
- Post-infectious lactose intolerance
Key Foods to Include
- Lactose-free milk and dairy
- Plant-based milks (almond, soy, oat)
- Hard cheeses (aged cheddar, parmesan)
- Yogurt with live cultures
- Lactose-free ice cream
Foods to Limit or Avoid
- Regular milk and cream
- Soft cheeses
- Ice cream (unless lactose-free)
- Milk chocolate
- Cream-based soups
Potential Benefits
- Eliminates digestive discomfort
- Reduces bloating and gas
- Prevents diarrhea
- Improves overall digestive comfort
Important Considerations: May need calcium supplementation. Check for hidden lactose sources. Gradual reintroduction possible. Consider lactase enzyme supplements.
General Guidelines for Therapeutic Diets
- Always consult with a healthcare provider before starting any therapeutic diet
- Work with a registered dietitian for personalized guidance and meal planning
- Monitor your symptoms and nutritional status regularly
- Be patient - dietary changes may take time to show effects
- Ensure adequate nutrition to prevent deficiencies
Medical Disclaimer
This content is for educational purposes only and is not intended as medical advice. Always consult with a qualified healthcare provider and registered dietitian before starting any therapeutic diet, especially if you have a medical condition.
Patient Resources & Support
Find trusted resources and organizations for therapeutic diets:
- Monash University FODMAP App - Official FODMAP database and guidance
- Celiac Disease Foundation - Gluten-free diet guidelines and resources
- Mediterranean Diet Foundation - Research and guidelines for Mediterranean diet
- American Gastroenterological Association - Clinical guidelines for GI conditions
References
References for therapeutic diets are based on clinical guidelines from gastroenterology societies and peer-reviewed research. For specific diet recommendations, consult with a registered dietitian and your healthcare provider.