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Calcium metabolism in hypertension
1Division of Nephrology, Hypertension and Clinical Pharmacology, Oregon Health Sciences University, Portland 97201, USA.
The Keio Journal of Medicine
|December 1, 1995
Summary
Adequate dietary calcium intake is crucial for managing high blood pressure (hypertension). Research indicates calcium plays a key role in preventing and treating hypertension, benefiting specific populations and interacting with other nutrients.
Area of Science:
- Cardiovascular Health
- Nutritional Science
- Public Health
Background:
- Hypertension is a prevalent chronic disease and a major risk factor for cardiovascular disease.
- Altered calcium metabolism is observed in individuals with hypertension, suggesting calcium's role in its development and management.
- Low dietary calcium intake is consistently found in hypertensive populations.
Purpose of the Study:
- To explore the role of calcium metabolism in hypertension.
- To evaluate the impact of calcium supplementation on blood pressure.
- To identify populations that may benefit from increased calcium intake.
Main Methods:
- Review of epidemiologic surveys and clinical trials on calcium metabolism and hypertension.
- Analysis of biochemical parameters related to calcium in hypertensive individuals.
- Examination of calcium supplementation trial results and nutrient interactions.
Main Results:
- Abnormalities in calcium metabolism and low dietary calcium intake are linked to hypertension.
- Calcium supplementation shows varying but potentially beneficial effects on blood pressure.
- Elderly individuals, people of African origin, and pregnant women may particularly benefit from calcium intake.
Conclusions:
- Increased calcium intake may benefit many hypertensive patients.
- Calcium's blood pressure-lowering effects are influenced by interactions with sodium and potassium.
- Adequate long-term calcium intake may aid in preventing hypertension and has potential clinical applications.