Douglas Laboratories Methyl Folate L-5-MTHF
Brand: Douglas Laboratories · Form: TABLET [E0155]
Our assessment
Our assessment: The evidence for Douglas Laboratories Methyl Folate L-5-MTHF is limited when reviewing the data provided. This product contains calcium, and the data on this ingredient is clear. The primary role of calcium is in bone health, where it supports bone density and mineral deposition [NIH ODS]. However, we must be honest about what the data does not show — there are no specific studies in the provided list that examine this exact product for any health condition.
How it works
Think of calcium as a structural builder for your bones, working through bone mineralization to support density and mineral deposition [NIH ODS]. It also plays a role in neuromuscular relaxation, helping your muscles relax and nerves signal properly [NIH ODS]. The data does not provide specific information on how the methyl folate form in this product functions separately from the calcium content.
Safety profile
The FDA received 592,059 total adverse event reports for products in this category [FDA data]. For calcium specifically, side effects from high levels include 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]. Some research also suggests high calcium intakes might increase the risk of heart disease and prostate cancer [NIH ODS]. Calcium can reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. Data on side effects specific to this brand or the L-5-MTHF ingredient is not available.
Our recommendation
Our recommendation: Since the provided data does not include specific studies or adverse event reports for Douglas Laboratories Methyl Folate L-5-MTHF, we cannot make a confident recommendation for its use. The calcium content may be beneficial for bone health if you are deficient, but you should be cautious about high intakes and potential medication interactions [NIH ODS]. We suggest consulting your healthcare provider to determine if this supplement is appropriate for your individual needs, as data on its specific effects is not available.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Douglas Laboratories |
|---|---|
| Serving Size | |
| Contents | 60.0 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