Douglas Laboratories Methyl B12 Plus
Brand: Douglas Laboratories · Form: TABLET [E0155]
Our assessment
The evidence shows that this product provides vitamin B12 and calcium. Based on the NIH data, calcium supports bone mineralization and neuromuscular relaxation [NIH ODS]. However, we must be transparent: the specific formulation of this supplement means its effects depend on your individual needs and current diet.
How it works
Think of calcium as a structural building block for your bones and a key player in nerve signaling. It helps maintain bone density and supports muscle relaxation [NIH ODS]. The B12 component works alongside calcium to support energy metabolism and nervous system function, though specific data on this combination is limited to the ingredients provided.
Safety profile
FDA received 592,059 total adverse event reports across all supplements, though specific report counts for this product are not available. Based on NIH data, high calcium intakes may increase risk of heart disease, prostate cancer, and can cause side effects including constipation, nausea, weight loss, extreme tiredness, and abnormal heart rhythms [NIH ODS]. Calcium can also reduce absorption of several medications including bisphosphonates, tetracycline antibiotics, and levothyroxine [NIH ODS].
Our recommendation
Start by assessing your total daily calcium intake from food and other supplements. If you take medications for thyroid conditions, osteoporosis, or infections, consult your doctor before using this product due to potential absorption interference [NIH ODS]. Choose this supplement only if you have a confirmed need for both B12 and calcium, and monitor for side effects like constipation or nausea [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Douglas Laboratories |
|---|---|
| Serving Size | |
| Contents | 90.0 Tablet(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