Product Label

Jarrow Formulas Methyl Folate 400 mcg

Brand: Jarrow Formulas · Form: CAPSULE [E0159]

Our assessment

Our assessment is that while the product you asked about contains folate, the available data specifically covers calcium. For calcium, the evidence shows it is essential for bone health, but you need to be cautious with dosing. Some research suggests that high calcium intakes might increase the risk of heart disease and prostate cancer [NIH ODS].

How it works

Think of calcium as a structural builder for your bones. It supports bone density and mineral deposition through a process called bone mineralization. It also plays a key role in neuromuscular relaxation, supporting muscle relaxation and nerve signaling [NIH ODS].

Safety profile

Safety data is limited here. The FDA received a total of 592,059 adverse event reports for all supplements, but specific report counts for calcium are not provided. 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].

Our recommendation

Our recommendation is to be aware that calcium can reduce the absorption of several medications, including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. For the specific product you mentioned, data on its ingredients and dosage is not available. Always consult your healthcare provider before starting a new supplement, especially if you take prescription medications.

AI-assisted analysis. Data sourced from NIH DSLD.

Supplement Facts

BrandJarrow Formulas
Serving Size
Contents60.0 Capsule(s)
Market StatusOff 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

Original Label

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