Food supplement · MET-Rx
Timed-Release Caffeine
Why MET-Rx caffeine?
- 200 mg caffeine per serving
From the label’s panel and printed marks — not its marketing.
Sold as food, not medicine — no regulator checked that it works
Per serving · 1 Capsule(s)
At a glance
From the label as printed · NIH DSLD
Herbal supplement · Capsule
Per serving200 mg caffeine
For best result, take one (1) capsule daily, preferably with a meal.
One serving: 1 Capsule(s)
Full directions ↓As a reminder, discuss the supplements and medications you take with your health care providers.
All warnings ↓No third-party testing mark on the label
Marks like USP Verified mean an independent lab checked that the product contains what the label says.
- Food supplement — claims are the manufacturer’s
- Adult (18 - 50 Years)
Supplement Facts
Supplement Facts
Serving size 1 Capsule(s)
| Amount per serving | % DV | |
|---|---|---|
| Caffeine (Caffeine Anhydrous) | 200 mg | † |
† Daily Value not established.
Other ingredients: Sugar, Gelatin, Starch, Food Glaze, Magnesium Silicate, Povidone, Contains <2% of
Transcribed from the label by the NIH Office of Dietary Supplements. What a label says is not independently verified. See the original label
How to take it
- For best result, take one (1) capsule daily, preferably with a meal.
- Directions: For adults, take one (1) daily, preferably with a meal.
The manufacturer’s directions, from the label.
Warnings on the label
- As a reminder, discuss the supplements and medications you take with your health care providers.
- WARNING: Not intended for use by pregnant or nursing women. If you are taking any medications or have any medical condition, consult your doctor before use.
- Discontinue use and consult your doctor if any adverse reactions occur.
- This product contains caffeine. Avoid additional consumption of caffeine, which may intensify adverse effects.
- Not intended for use by persons under the age of 18.
- Keep out of reach of children.
- Tamper resistant: do not use if seal under cap is broken or missing.
What no one has checked
Supplements are regulated as food, not as medicine. No regulator has assessed whether this product works, and manufacturing standards vary widely between brands and countries.
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Details
| Brand | MET-Rx |
|---|---|
| UPC | 7 86560 51847 5 |
| NIH label ID | 63884 |
| Label recorded | 2016-08-24 |
Source: Dietary Supplement Label Database · NIH Office of Dietary Supplements · retrieved 2026-09-21 · not reviewed by a nutrition professional