Carlson Liquid Calcium With Vitamin D
Brand: Carlson · Form: SOFTGEL CAPSULE [E0161]
Our assessment
The evidence shows that this combination of calcium and vitamin D is well-established for supporting bone health. However, the data also reveals important safety considerations you need to be aware of before starting supplementation. Our assessment is that this supplement can be effective, but it requires careful dosing and medical oversight to avoid risks.
How it works
Think of calcium as the primary building block for your bones. It supports bone mineralization by aiding in bone density and mineral deposition, while also promoting muscle relaxation and nerve signaling [NIH ODS]. The vitamin D in this product helps your body absorb that calcium more efficiently. Together, they work as a team to maintain strong skeletal structure.
Safety profile
FDA received a total of 592,059 adverse event reports for this product category. You should be aware that some research suggests high calcium intakes might increase the risk of heart disease and prostate cancer [NIH ODS]. High levels of calcium in your blood and urine can cause poor muscle tone, poor kidney function, low phosphate levels, constipation, nausea, weight loss, extreme tiredness, frequent need to urinate, abnormal heart rhythms, and a high risk of death from heart disease [NIH ODS]. Additionally, calcium can reduce the absorption of several medications including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS].
Our recommendation
We recommend you start by having your blood calcium levels checked by your doctor before beginning this supplement. If you take any prescription medications, especially those listed above, take this supplement at a different time of day to avoid absorption issues [NIH ODS]. Do not exceed the recommended dose on the label, and discontinue use and contact your healthcare provider immediately if you experience nausea, constipation, or unusual tiredness. Data not available for specific dosing recommendations beyond general guidance.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Carlson |
|---|---|
| Serving Size | |
| Contents | 100.0 Softgel(s) |
| Market Status | Off Market |
How to Read This Label
Supplement labels contain several key sections regulated by the FDA:
- Serving Size — The recommended amount per dose. Always check this — some products require multiple capsules per serving.
- Amount Per Serving — Shows the quantity of each nutrient in the product, typically in IU (International Units), mg (milligrams), or mcg (micrograms).
- % Daily Value (%DV) — Indicates how much a nutrient in a serving contributes to a daily diet. 5% DV or less is low; 20% DV or more is high.
- Other Ingredients — Lists inactive ingredients like fillers, binders, and capsule materials (e.g., gelatin, cellulose, magnesium stearate).
- Suggested Use — The manufacturer's recommended directions for taking the supplement, including timing and dosage.
Source: FDA Dietary Supplement Labeling Guide