Nutritional Influences on Tuberculosis Treatment Outcomes
Summary
Tuberculosis and nutrition are intertwined in a bidirectional relationship: active disease often precipitates weight loss and micronutrient depletion, while undernutrition predisposes individuals to infection, disease progression and poorer therapeutic response. Adequate intake of macronutrients supports the energy demands of recovery and tissue repair, whereas micronutrients such as vitamins A, D and zinc are critical for optimal cell-mediated immunity against Mycobacterium tuberculosis. Persistent undernutrition during treatment has been linked to increased risk of cavitary lung disease, delayed sputum clearance and higher mortality. Nutritional assessment—incorporating body mass index and biochemical markers—has become integral to comprehensive patient management, and targeted interventions range from food supplementation to tailored dietary counselling. Global initiatives now advocate integrating nutritional support into standard tuberculosis care to enhance cure rates, reduce relapse and attenuate the broader public health burden of the disease.
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Nutritional Influences on Tuberculosis Treatment Outcomes publication trend
The graph below shows the total number of articles in nutritional influences on tuberculosis treatment outcomes across all publications each year (not limited to Nature Index journals).
Technical terms
Body mass index (BMI): A measure of body fat based on weight and height, used to classify undernutrition (<18.5 kg/m2), normal weight and obesity.
Undernutrition: A state resulting from insufficient intake of energy and nutrients, leading to impaired physiological function and increased disease susceptibility.
Micronutrients: Essential vitamins and minerals required in small quantities for immune competence, enzymatic reactions and cellular repair.
Macronutrients: Dietary proteins, carbohydrates and fats that supply energy and serve as building blocks for body tissues.
Immunomodulation: The alteration of immune responses by external factors—such as nutrients—that can enhance or suppress defence mechanisms against pathogens.
References
- A cross-sectional analysis of the effectiveness of a nutritional support programme for people with tuberculosis in Southern Madagascar using secondary data from a non-governmental organisation. Infectious Diseases of Poverty (2024).
- Malnutrition: Modulator of Immune Responses in Tuberculosis. Frontiers in Immunology (2017).
- Nutritional Status of Adult Patients with Pulmonary Tuberculosis in Rural Central India and Its Association with Mortality. PLOS ONE (2013).
- Effect of malnutrition on radiographic findings and mycobacterial burden in pulmonary tuberculosis. PLOS ONE (2019).
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