Food supplement · Kirkland Signature
Optifiber
Why Kirkland Signature fiber?
- Flavor-free Sugar-free Gluten-free
- No preservatives added No lactose No artificial color No artificial flavor Non-GMO Gluten-free
From the label’s panel and printed marks — not its marketing.
Supplement Facts
Serving size 4g (2 Teaspoon(s))
Calories15 kcal
Sodium0 mg
Total Carbohydrates4 g
Full panel ↓Sold as food, not medicine — no regulator checked that it works
Per serving · 4g (2 Teaspoon(s))
At a glance
From the label as printed · NIH DSLD
Gut health supplement · Powder
190 servings per container
Children under 6 years of age: Consult your doctor before use.
One serving: 4g (2 Teaspoon(s))
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
- Flavor-free Sugar-free Gluten-free
- No preservatives added No lactose No artificial color No artificial flavor Non-GMO Gluten-free
- Children 4 or More Years of Age
- Adult (18 - 50 Years)
Supplement Facts
Supplement Facts
Serving size 4g (2 Teaspoon(s))
Servings per container 190
| Amount per serving | % DV | |
|---|---|---|
| Calories | 15 kcal | † |
| Sodium | 0 mg | 0% |
| Total Carbohydrates | 4 g | 1% |
| Dietary Fiber | 3 g | 11% |
| Soluble Fiber | 3 g | |
| Total Sugars | 0 g |
† Daily Value not established.
Other ingredients: Wheat Dextrin
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
- Suggested Use: Stir two (2) teaspoons (1 scoop) of Optifiber into at least 4 oz of any non-carbonated beverage or soft food. Stir until dissolved. Adults and children 12 and over: 3 to 5 servings per day. Children 6-11 years of age: 3 servings per day. Children under 6 years of age: Consult your doctor before use.
The manufacturer’s directions, from the label.
Warnings on the label
- Children under 6 years of age: Consult your doctor before use.
- Contains wheat ingredients Gluten free: Less than 20 ppm gluten
- Warning: If you are pregnant, nursing, taking any medications or planning any medical procedure, consult your doctor before use.
- Discontinue use and consult your doctor if any adverse reactions occur.
- Keep out of the reach of children.
- Important: Tamper-evident seal under cap. Do not use if printed seal 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.
Compare with similar products
Details
| Brand | Kirkland Signature |
|---|---|
| NIH label ID | 276001 |
| Label recorded | 2022-08-23 |
Source: Dietary Supplement Label Database · NIH Office of Dietary Supplements · retrieved 2026-09-21 · not reviewed by a nutrition professional