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Urinary nitrogen in elderly Indians

J D Pathak, S D Joshi

    Indian Journal of Physiology and Pharmacology
    |April 1, 1977
    PubMed
    Summary
    This summary is machine-generated.

    Elderly Indian lactovegetarians excrete significantly lower urinary nitrogenous waste products, including urea, compared to young Europeans on meat-rich diets. Their nitrogen (N2) output is higher than those on protein-free diets.

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    Area of Science:

    • Nutrition Science
    • Gerontology
    • Biochemistry

    Background:

    • Dietary habits and their impact on health are crucial, especially in aging populations.
    • Understanding nitrogenous waste excretion is key to assessing metabolic health.
    • Lactovegetarian diets are common in India, necessitating specific nutritional studies.

    Purpose of the Study:

    • To quantify urinary nitrogenous constituents in elderly Indian lactovegetarians.
    • To compare these values with existing data from different populations and dietary patterns.
    • To assess the metabolic implications of a lactovegetarian diet in elderly Indians.

    Main Methods:

    • Analysis of 24-hour urine samples for urea, creatinine, uric acid, and ammonia.
    • Dietary assessment of calorie and protein intake in healthy elderly Indian subjects.

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  • Comparative analysis of nitrogenous waste excretion data.

    • Main Results:

    • Average daily diet: 1603 calories, 52.3g protein.
    • Average daily urinary volume: 1568 cc.
    • Average daily urinary nitrogenous constituents: Urea (11.27g), Creatinine (1.09g), Uric Acid (0.56g), Ammonia (0.38g).
    • Elderly Indian lactovegetarians showed significantly lower urea and total nitrogen (N2) excretion than young Europeans on meat-rich diets.
    • Excretion levels were higher than those reported for individuals on protein-free diets.

    Conclusions:

    • Elderly Indian lactovegetarians exhibit a distinct pattern of nitrogenous waste excretion.
    • Their lower N2 output suggests potential differences in protein metabolism or utilization.
    • These findings highlight the influence of diet and age on nitrogen excretion in specific populations.