Electrolytes
Also known as calcium, chloride, magnesium, mineral salts
Key takeaways
- Calcium supplementation may reduce the risk of developing pre-eclampsia (PMID: 41330480).
- Sodium and potassium intake levels are significantly associated with overall and cause-specific mortality (PMID: 38519925).
- Phosphate binders are used to lower serum phosphate levels in patients with chronic kidney disease (PMID: 30132304).
What the research shows
AI-synthesized from 849 peer-reviewed sources · Updated 2025
Electrolytes (including calcium, magnesium, sodium, and potassium) are essential minerals that regulate various physiological processes. Research indicates their effectiveness varies widely by specific mineral and condition, ranging from critical roles in pregnancy and bone health to complex associations with cardiovascular mortality.
By condition
Pregnancy Hypertensive Disorders
Moderate
Calcium supplementation may reduce the risk of pre-eclampsia and related hypertensive disorders.
Bone Density and Fractures
Moderate
Calcium and Vitamin D are used to increase bone mineral density, though evidence for fracture prevention in older adults is mixed.
Skeletal Muscle Cramps
Insufficient
Evidence for magnesium supplementation in treating skeletal muscle cramps is generally insufficient or inconclusive.
Cognitive Function
Weak
Vitamin and mineral supplementation has shown limited effectiveness in maintaining cognitive function in healthy adults.
Chronic Kidney Disease (CKD)
Moderate
Phosphate binders are effective in managing serum phosphate levels in CKD-MBD patients.
Effective doses
Specific dose ranges were not provided in the provided abstracts; however, calcium and phosphate binders are utilized for targeted clinical outcomes.
Safety & interactions
Caution is required in patients with chronic kidney disease regarding phosphate and magnesium levels; sodium intake is closely linked to stroke risk.
Limitations
Research is fragmented across different minerals, and many meta-analyses report mixed results or insufficient evidence for specific applications like muscle cramps or cognitive health.
Top-rated Electrolytes products
Ranked by safety score and evidence coverage
How it's sold
Data aggregated from 7,489 product labels
Research evidence
Showing top 10 of 849 sources, sorted by quality
BACKGROUND: Phosphate binders are used to reduce positive phosphate balance and to lower serum phosphate levels for people with chronic kidney disease (CKD) with the aim to prevent progression of chronic kidney disease-mineral and bone diso…
BACKGROUND: Maternal nutrition during pregnancy is known to have an effect on fetal growth and development. It is recommended that women increase their calcium intake during pregnancy and lactation, although the recommended dosage varies am…
BACKGROUND: Maternal nutrition during pregnancy is known to have an effect on fetal growth and development. It is recommended that women increase their calcium intake during pregnancy and lactation, although the recommended dosage varies am…
BACKGROUND: Vitamins and minerals play multiple functions within the central nervous system which may help to maintain brain health and optimal cognitive functioning. Supplementation of the diet with various vitamins and minerals has been s…
RATIONALE: Calcium supplementation may reduce the risk of developing pre-eclampsia, a common cause of serious maternal and neonatal morbidity and death. However, its effectiveness in preventing hypertensive disorders of pregnancy is uncerta…
BACKGROUND: Several dietary factors have been considered to be involved in the increasing incidence of colorectal cancer in industrialised countries. Experimental and epidemiological evidence has been suggestive but not conclusive for a pro…
BACKGROUND: Osteoporosis is a condition where bones become fragile due to low bone density and impaired bone quality. This results in fractures that lead to higher morbidity and reduced quality of life. Osteoporosis is considered a major pu…
BACKGROUND & AIMS: The association of high sodium intake with risk of stroke has been accepted. But considering the proposed J/U-shaped association between sodium intake and risk of all-cause mortality, the shape of the dose-response relati…
**Leenders et al., 2021** | Clin Nutr | Meta Analysis Leenders Nicoline H J, Vermeulen Emma A, ... Vervloet Marc G. The association between circulating magnesium and clinically relevant outcomes in patients with chronic kidney disease: A sy…
**Zhu et al., 2021** | Cochrane Database Syst Rev | Systematic Review Zhu Jiaying, Chen Ning, ... He Li. Calcium channel blockers versus other classes of drugs for hypertension. Cochrane Database Syst Rev. 2021-Oct-17;10(10):CD003654. doi:1…
Frequently asked questions
What are electrolytes and what do they do?
Electrolytes are essential minerals, including calcium, magnesium, sodium, and potassium, that regulate various physiological processes in the body. Research indicates their effectiveness varies widely depending on the specific mineral and the health condition being addressed.
Do electrolyte supplements help with bone health?
There is moderate evidence that calcium and Vitamin D supplementation can help increase bone mineral density. However, the evidence for preventing fractures in older adults remains mixed, so results may vary by individual.
Can electrolytes prevent pre-eclampsia during pregnancy?
Calcium supplementation has moderate evidence for reducing the risk of pre-eclampsia and related hypertensive disorders. Pregnant individuals should consult their healthcare provider before starting calcium supplements to ensure safety and appropriate dosing.
Do magnesium supplements stop muscle cramps?
The evidence for magnesium supplementation in treating skeletal muscle cramps is generally insufficient or inconclusive. Research does not currently support a definitive benefit for this specific use case.
Are electrolyte supplements safe for people with kidney disease?
Caution is required for patients with chronic kidney disease, particularly regarding phosphate and magnesium levels, as improper intake can be harmful. Phosphate binders are used clinically to manage serum phosphate levels in these patients, but self-supplementation should be avoided without medical supervision.
Do electrolytes improve cognitive function in healthy adults?
There is weak evidence suggesting that vitamin and mineral supplementation has limited effectiveness in maintaining cognitive function in healthy adults. Research does not strongly support using electrolytes for this purpose.
Who should avoid electrolyte supplements or use them with caution?
Individuals with chronic kidney disease should avoid unmonitored supplementation due to risks with phosphate and magnesium levels. Additionally, because sodium intake is closely linked to stroke risk, those with hypertension or cardiovascular concerns should monitor their sodium intake carefully and consult a healthcare provider.