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Raúl Aguilera Eguía1, Paula Jessica Jorquera Pino, Claudia Jaqueline Salgado
1Facultad de Ciencias de la Actividad Física. Universidad San Sebastián. Santiago de Chile. kine.rae@gmail.com.
Nutricion Hospitalaria
|August 31, 2016
Summary
Calcium supplementation does not appear to significantly reduce body mass index in obese individuals. Evidence suggests a very low certainty, indicating considerable uncertainty about the actual effect of calcium on weight management.
Area of Science:
- Nutrition Science
- Public Health
- Evidence-Based Medicine
Background:
- Obesity is defined by the World Health Organization as abnormal or excessive fat accumulation posing health risks.
- Effective strategies for obesity management are crucial for public health.
- Systematic reviews are essential for evaluating intervention efficacy.
Purpose of the Study:
- To systematically review Cochrane and non-Cochrane reviews evaluating calcium supplementation for reducing body mass index (BMI) in obese individuals.
- To synthesize the current evidence on the effectiveness of calcium for weight management in obesity.
- To assess the certainty of evidence regarding calcium's impact on BMI.
Main Methods:
- Comprehensive literature search across databases including Medline, TripDatabase, Epistemonikos, and Cochrane BVS up to September 2015.
- Manual searches in relevant journals, conference proceedings, reference tracking, and expert consultation were employed.
- Inclusion criteria focused on systematic reviews of randomized controlled trials assessing calcium supplementation and BMI in obese populations.
Main Results:
- An initial search identified 7,163 potentially relevant articles.
- Two systematic reviews of randomized controlled trials met the eligibility criteria.
- Calcium supplementation showed a non-significant effect on BMI reduction (MD -0.12, 95% CI -0.62 to 0.86; P = 0.75).
Conclusions:
- Calcium supplementation does not appear to influence a reduction in body mass index for individuals with obesity.
- The evidence GRADE assessment indicates 'very low evidence,' signifying substantial uncertainty in the estimated effect.
- Further high-quality research may be needed to clarify the role of calcium in obesity management.
