You're getting 1,000mg of **Calcium** in the citrate form, which absorbs well and doesn't require stomach acid — so you can take it with or without food. That's a full day's RDA in one serving, well above the typical 200–600mg supplemental range. The directions suggest splitting your four tablets throughout the day, and that matters: your body absorbs calcium much less efficiently above 500mg at once, so two tablets twice daily will deliver significantly more benefit than all four together.
The included **Vitamin D3** helps your body actually absorb the calcium — without adequate D, you'd only take in about 10–15% of what's in the tablets. However, the dose is just 600 IU (the RDA), which falls short of the 1,000–5,000 IU range that clinical research supports for maintaining healthy blood levels. If you're relying on this as your only vitamin D source, you'd benefit from a separate supplement to bring your total closer to 2,000–5,000 IU daily.
The four-tablet serving size is worth considering. That's 120 tablets for a 30-day supply, and each tablet is a standard Solgar pressed tablet — if pill burden is a concern, this could feel like a lot alongside other daily supplements.
Best for
Ingredients (2)
Calcium
100%Dose
1000 mg
Target
200–600 mg
Form
Premium
Vitamin D3
60%Dose
600 IU
Target
1000–5000 IU
Form
Premium
Other Ingredients (5)
Silicon DioxideAnti-caking
Fine silica powder used to prevent clumping
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
GlycerinHumectant
Sweet-tasting liquid used in soft capsules and liquids
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).
This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.
The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.