Great question! Finding reliable information on supplement quality can feel overwhelming, especially with so much conflicting advice online. Here are some trustworthy resources worth exploring:
- NIH Office of Dietary Supplements (ods.od.nih.gov) — covers supplement quality, forms, and absorption
- Bone Health & Show Full Answer
Great question! Finding reliable information on supplement quality can feel overwhelming, especially with so much conflicting advice online. Here are some trustworthy resources worth exploring:
- NIH Office of Dietary Supplements (ods.od.nih.gov) — covers supplement quality, forms, and absorption
- Bone Health & Osteoporosis Foundation (bonehealthandosteoporosis.org) — specific guidance on calcium and vitamin D for osteoporosis
- ConsumerLab.com — independently tests supplement quality and bioavailability (some content requires a subscription) For post-menopausal women specifically, hormone changes can reduce how well the body absorbs calcium and vitamin D — two nutrients critical for bone health. A few key points to keep in mind:
- Calcium citrate is generally better absorbed than calcium carbonate, especially as stomach acid decreases with age
- Vitamin D3 is typically considered more effective than D2 at raising vitamin D levels in the blood
- Taking too much calcium or vitamin D can cause problems like kidney stones, so dosage matters
Splitting supplement doses throughout the day can also improve absorption and reduce digestive side effects like constipation or acid reflux — something many people with osteoporosis have found helpful. The most important step is discussing supplement choices with a doctor or pharmacist. They can review the specific forms, doses, and timing that work best for individual needs — and flag any interactions with osteoporosis medications like bisphosphonates, which can be affected by calcium supplements.
May 18
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