Solgar Folate 666 mcg DFE (400 mcg Folic Acid)
Brand: Solgar · Form: TABLET [E0155]
Our assessment
The evidence shows that Solgar Folate 666 mcg DFE (400 mcg Folic Acid) is a standard-dose folic acid supplement. Our assessment is that this product is appropriate for supporting basic nutritional needs, but you should be aware that the primary ingredient listed in our data is calcium, not folate, which creates a significant data gap for a full evaluation of this specific product.
How it works
Think of calcium as a structural builder — it supports bone density and mineral deposition, and it also aids in neuromuscular relaxation and nerve signaling [NIH ODS]. The product label states it provides 666 mcg DFE of folate, which is a form of vitamin B9. However, the specific mechanism for folic acid from this product is not detailed in the data provided.
Safety profile
Data not available for side effects specific to this product's folic acid content. For calcium, which is listed as the primary ingredient in the data, high intakes may 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]. The FDA has received a total of 592,059 adverse event reports across all supplements [FDA data], but a report count specific to this product is not available.
Our recommendation
Our recommendation is to verify the actual ingredients in your bottle. The data provided lists calcium as the primary ingredient, not folic acid. If you are looking specifically for a folate supplement, confirm the label matches your needs. If you are taking calcium supplements, be aware they can reduce the absorption of medications including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. Consult your doctor or pharmacist before starting any new supplement regimen.
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Solgar |
|---|---|
| Serving Size | |
| Contents | 250.0 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