Very-Low-Calorie Diet Program
A very-low-calorie diet is an intensive medical intervention—not a general crash diet—and should be reserved for selected patients with structured monitoring.
Program components
Depending on the patient, a plan may use nutritionally designed meal replacements, adequate protein, hydration guidance, activity modification, laboratory assessment and a staged food transition.
Selection
Medical risks, current medicines, prior eating behavior and ability to follow monitoring are reviewed.
Monitoring
Symptoms, vital signs, laboratory needs and medication doses may require reassessment.
Maintenance
A gradual transition and long-term eating strategy are essential.
Safety and evidence
Rapid loss can contribute to gallstones, lean-mass loss, electrolyte problems, gout, dizziness, constipation and medication-related complications. Pregnancy, eating disorders and several medical conditions may exclude participation.
How W8MD can help
W8MD reviews the reason for treatment, health history, medications, allergies, diet, relevant laboratory information, route, formulation, evidence, alternatives and cost. The plan is individualized rather than based on a universal “cocktail.”
IV and IM overview · Medical nutrition therapy · Injection safety · Who should avoid treatment? · Pricing · Nutrition encyclopedia
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Medical and pricing notice: General education only. Evaluation is required. An injection or infusion is not a substitute for diagnosis, balanced nutrition or evidence-based treatment. Product, dose, route, pharmacy source, availability, insurance, total price and results vary. Call 911 for an emergency.
Content reviewed for general accuracy by W8MD clinical leadership. Last reviewed September 2026.