Calcium Supplements
Support bone density, muscle contraction, and nerve signalling; often combined with vitamin D
Forms
Calcium carbonate (take with food), calcium citrate (absorbed without food), chewables, tablets
Advantages
Effective at reducing fracture risk when combined with vitamin D in deficient individuals
Disadvantages
A food-first approach is generally preferred; excess supplemental calcium has been linked to cardiovascular concerns in some studies
Side effects
Constipation, bloating, gas
Interactions
Reduces absorption of iron, zinc, and certain antibiotics (tetracyclines, quinolones) if taken together
At-risk groups
Postmenopausal women, older adults, those with low dairy intake, people with osteoporosis risk
Cautions
Avoid exceeding 2000–2500 mg/day total from diet and supplements combined; space away from iron and zinc supplements
Related symptoms
Educational information only — not medical advice. This content does not diagnose, treat, or replace consultation with a qualified healthcare professional. Always seek professional medical advice for symptoms, supplement use, or health concerns.