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Dietician Counselling
At GastroDoxs, Dr. Nghia Nguyen offers personalized dietitian counseling in Houston to support digestive health, weight management, and chronic disease prevention. With expert guidance, tailored meal plans, follow-up, Dr. Nguyen empowers patients to embrace healthier eating habits and improve well-being.
Dr. Nghia Nguyen, DO, is a board-certified gastroenterologist providing advanced digestive care in the Greater Houston area. He earned his medical degree from the Texas College of Osteopathic Medicine and completed both his Internal Medicine residency and Gastroenterology fellowship at the University of Texas at Rio Grande Valley. Dr. Nguyen specializes in treating conditions such as acid reflux, irritable bowel syndrome (IBS), inflammatory bowel disease (IBD), and liver disorders.
Common Causes and Risk Factors
Unbalanced diet high in processed foods, added sugars, and unhealthy fats
Sedentary lifestyle with minimal physical activity
Chronic conditions such as diabetes, hypertension, or cardiovascular disease
Gastrointestinal disorders like IBS, celiac disease, or food intolerances
Rapid weight fluctuations or yo-yo dieting
Family history of metabolic or digestive health issues
Medications that affect appetite, digestion, or nutrient absorption
Signs and Symptoms
Persistent bloating, gas, or heartburn after meals
Frequent constipation, diarrhea, or irregular bowel habits
Unexplained weight gain or weight loss
Low energy levels, chronic fatigue, or “brain fog”
Strong food cravings or difficulty feeling satisfied
Indicators of nutrient deficiencies (hair loss, brittle nails, anemia)
Blood sugar swings causing dizziness, irritability, or mood changes
How Dr. Nghia Nguyen Diagnoses?
Dr. Nguyen uses a step-by-step approach:
Diet and Symptom History
She reviews your typical meals, portion sizes, mealtime routines, and specific epigastric symptoms—burning, aching, or fullness after eating.
Physical Exam and Palpation
She gently palpates the upper abdomen to assess tenderness, bloating, or muscle tension and observes posture that may exacerbate discomfort.
Nutritional Laboratory Tests
When indicated, we screen for nutrient deficiencies (iron, B12) and inflammation markers to uncover malabsorption or chronic irritation.
Elimination & Challenge Diets
Dr. Nguyen guides you through removing common triggers—dairy, gluten, caffeine, high-fat foods—then systematically reintroduces them to identify culprits.
Breath and Stool Testing
H. pylori breath test to detect infection linked to ulcers and gastritis.
SIBO breath test for small intestinal bacterial overgrowth that can mimic acid reflux or pain.
Collaborative Referrals (if needed)
If symptoms persist, he coordinates with your GI physician for upper endoscopy or imaging to rule out ulcers, reflux esophagitis, or structural issues.
Treatment
Our Team offers a full range of care through dietitian counseling.
1. Lifestyle and Diet Modifications
Personalized meal plans focused on fresh, whole foods and local grocery options
Mindful eating strategies, meal prep tips, and food-label reading skills
Flexible, easy-to-follow diets low in sugar, salt, and unhealthy fats to support weight, energy, and digestion goals
2. Supplements and Medications
Targeted use of fiber, probiotics, or digestive enzymes to improve gut health
Vitamin and mineral supplementation guided by your lab results
Coordination with your physician to adjust GI medications (e.g., acid blockers) when needed
3. Testing and Advanced Options
Endoscopic nutrition testing to optimize your diet based on digestive function
Food sensitivity assessments when symptoms are difficult to track
Additional diagnostics or referrals for deeper evaluation as required
Dr. Nghia Nguyen, DO, is a board-certified gastroenterologist providing advanced digestive care in the Greater Houston area. He earned his medical degree from the Texas College of Osteopathic Medicine and completed both his Internal Medicine residency and Gastroenterology fellowship at the University of Texas at Rio Grande Valley. Dr. Nguyen specializes in treating conditions such as acid reflux, irritable bowel syndrome (IBS), inflammatory bowel disease (IBD), and liver disorders.
Frequently Asked Questions
What's the difference between a dietitian and a nutritionist?
Dietitians are licensed healthcare professionals with clinical training and RD credentials. Nutritionist titles can vary and may not require certification.
Is counseling available near me in Houston?
Yes. We serve Montrose, Memorial, The Heights, and all Greater Houston areas.
Can you help with weight loss and gut health?
Absolutely. Dr. Nguyen specializes in both weight management and digestive health.
Does insurance cover dietitian counseling?
Many insurance plans cover dietitian counseling. Our team will verify your benefits before your first visit.
How many visits do I need?
Most patients start with one session per month, then adjust frequency based on progress and goals.
Do you offer virtual appointments?
Yes. We offer telehealth visits throughout the Houston area for added convenience.
What should I bring to my first appointment?
Please bring recent lab results (if available), a list of current medications, and a 3-day food journal (optional but helpful).
