Metabolic Maintenance Vitamin D-3 5,000 IU
Brand: Metabolic Maintenance · Form: CAPSULE [E0159] On Market
Our assessment
The evidence shows that a 5,000 IU vitamin D supplement is a high-dose product. Our assessment: this dose is well above the standard recommended daily allowance and should only be used under professional guidance. Data on the specific ingredient, calcium, indicates that high intakes of certain minerals can pose risks, though vitamin D itself is not calcium [NIH ODS].
How it works
Vitamin D acts as a master regulator in your body. It helps your immune system respond to threats and supports brain health through neuroplasticity [NIH ODS]. For calcium specifically, it supports bone mineralization by helping deposit minerals into bone density and promotes neuromuscular relaxation for proper nerve signaling and muscle function [NIH ODS].
Safety profile
The FDA has received 592,059 total adverse event reports across all supplement categories. Data not available for this specific product. For calcium, high intake might increase the risk of heart disease and prostate cancer [NIH ODS]. Side effects from high calcium 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].
Our recommendation
Start by having your vitamin D blood levels checked before taking 5,000 IU daily. This high dose is not appropriate for everyone. Also be aware that calcium supplements can reduce the absorption of medications including bisphosphonates, tetracycline antibiotics, fluoroquinolone antibiotics, levothyroxine, and phenytoin [NIH ODS]. Choose a lower dose, such as 600 IU daily, unless your healthcare provider specifically recommends more [NIH ODS].
AI-assisted analysis. Data sourced from NIH DSLD.
Supplement Facts
| Brand | Metabolic Maintenance |
|---|---|
| Serving Size | |
| Contents | 90.0 Vegetarian Capsule(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