Douglas Laboratories Methyl B12 Plus
Brand: Douglas Laboratories · Form: LOZENGE [E0174] On Market
Our assessment
The evidence shows that Douglas Laboratories Methyl B12 Plus is a targeted supplement, but we must be very clear about what the data supports. The product contains calcium, and for that specific ingredient, the data confirms a role in bone mineralization and neuromuscular relaxation [NIH ODS]. However, no specific studies on this exact product formula were provided, and data on its other ingredients is not available. Our assessment is that this supplement may be appropriate for individuals with a confirmed need for additional B12 and calcium, but it is not a general health tonic.
How it works
Think of the calcium in this formula as a structural building block for your skeleton. The data shows that calcium supports bone density and mineral deposition, and it also plays a role in muscle relaxation and nerve signaling [NIH ODS]. This means the calcium component is intended to help maintain strong bones and proper nerve function. Data on how the methyl B12 component works is not available from the provided information.
Safety profile
The FDA has received a total of 592,059 adverse event reports across all supplements, but specific report counts for this product are not available. For the calcium ingredient, the data warns that high intakes might increase the risk of heart disease and prostate cancer [NIH ODS]. High levels of calcium in the 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]. You should consult your doctor if you take any of these medications.
Our recommendation
Our recommendation is to approach this supplement with caution. The data confirms that calcium supplements have real risks, especially at high doses, and they can interfere with critical medications [NIH ODS]. We recommend you first evaluate your dietary calcium intake and discuss your need for both B12 and calcium supplements with your healthcare provider. Do not take this product without a clear medical reason, as the safety profile for the full formula is not fully defined by the data provided.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Douglas Laboratories |
|---|---|
| Serving Size | |
| Contents | 90.0 Lozenge(s) |
| Market Status | On 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