Urinary incontinence
Supplements studied for urinary incontinence.
Overview
Vitamin D is the only supplement studied for urinary incontinence, with three trials and mixed results. In middle-aged women with stress incontinence and low vitamin D, 5000 IU weekly for 12 weeks alongside pelvic floor exercises improved bladder control and quality of life more than placebo.
However, in older adults, 2000 IU daily for five years did not reduce incontinence problems in a large study. Vitamin D carries low ratings overall. See the heatmap and evidence reviews below for more detail.
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