PlainVitamins

Natural Fiber

by Guardian · capsule · 100 capsules

  • On the market (NIH)
  • UPC 0 53041 65016 1
  • DSLD label 70346
  • Serving 5 capsules; amounts per 6 capsules
  • 16 servings

Natural Fiber by Guardian lists 2 ingredients, 2 with an amount per serving of 6 capsules, such as 0.4 mg of iron and 30 mg of potassium, beside 4 Nutrition Facts rows (calories, fat and the like). Its current label entered the NIH Dietary Supplement Label Database on February 24, 2017.

What is in Natural Fiber?

Each row as the label prints it, per serving of 6 capsules. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).

Natural Fiber: Supplement Facts rows against the market (DSLD label 70346, January 2026 release)
IngredientAmount% DVAmong products listing it
Calories10 Calories
Total Carbohydrates3 g1%Carbohydrate in Natural Fiber against 21,979 products3 g per serving; the middle half of products list 1 g to 6 g, the median 3 g.3 g

47% of 21,979 products listing carbohydrate give more (median 3 g). Per day at the most servings: 9 g.

Dietary Fiber3 g11%Fiber in Natural Fiber against 6,987 products3 g per serving; the middle half of products list 1 g to 4 g, the median 2 g.3 g

Higher than 63% of 6,987 products listing fiber (median 2 g). Per day at the most servings: 9 g.

Soluble Fiber2 g
Proteinless than 1 g
Iron0.4 mg2%Iron in Natural Fiber against 6,910 products0.4 mg per serving; the middle half of products list 1.2 mg to 18 mg, the median 5 mg.DV 18 mgUL 45 mg0.4 mg

92% of 6,910 products listing iron give more (median 5 mg). Per day at the most servings: 1.2 mg.

Potassium30 mg1%Potassium in Natural Fiber against 11,614 products30 mg per serving; the middle half of products list 50 mg to 190 mg, the median 99 mg.DV 4,700 mg30 mg

83% of 11,614 products listing potassium give more (median 99 mg). Per day at the most servings: 90 mg.

Source: NIH ODS Dietary Supplement Label Database, label 70346 (entered February 24, 2017), version 9.4.0. See the label on DSLD. Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:

  • 92% of the 6,910 products that print an amount of iron list more than its 0.4 mg of iron (median 5 mg).

The NIH database records 1 to 3 servings a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.

The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.

Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.

Which products have the closest formulas?

6 products list the very same ingredients; the nearest amounts come first.

Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.

What does the label say about taking it?

Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.

Directions
Directions Adults 12 yrs. & older: 2-6 capsules for increasing daily fiber intake; 6 capsules for cholesterol lowering use. Take this product with 8oz. of liquid (swallow 1 capsule at a time) up to 3 times daily. Notice: Take this product with at least 8 oz. (a full glass) of liquid. Taking this product without enough liquid may cause choking. Do not take if you have difficulty swallowing. See choking warning.
Directions - take this product (child or adult dose) with a full glass of water (8oz.) or other fluid. Taking this product without enough liquid may cause choking. See choking warning. - swallow one capsule at a time - daily maximum 3 doses - dosage will vary according to diet, exercise, previous laxative use or severity of constipation. adults and children 12 years & older 5 capsules, 1 to 3 times a day children 6 to 11 years consider use of powder form of product children under 6 years ask a doctor
Laxatives, including bulk fibers, may affect how well other medicines works. If you are taking a prescription drug medicine by mouth, take this product at least 2 hours before or 2 hours after the prescribed medicine. As your body adjusts to increased fiber intake, you may experience changes in bowel habits or minor bloating.
Warnings
Taking this product without enough liquid may cause choking. Do not take if you have difficulty swallowing. See choking warning.
Warnings Choking: Taking this product without adequate fluid may cause it to swell and block your throat or esophagus and may cause choking. Do not take this product if you have difficulty in swallowing. If you experience chest pain, vomiting, or breathing after taking this product, seek immediate medical attention.
Allergy alert: This product may cause an allergic reaction in people sensitive to inhaled or ingested psyllium
Ask a doctor before use if you have - abdominal pain, nausea or vomiting - difficulty in swallowing - a sudden change in bowel habits that persists over a period of 2 weeks
Stop use and ask doctor if - you fail to have a bowel movement after use or have rectal bleeding. These could be signs of a serious condition. - symptoms persist more than 1 week
Keep out of the reach of children.
Do not use if printed seal under cap is torn or missing.
Consult a doctor if you are considering use of this product as part of a cholesterol-lowering program.
Warnings: Read entire label, including warnings in drug facts under peel-back.
In case of overdose, get medical help or contact a Poison Control Center immediately.
Storage
Other information - store at room temperature - protect contents from moisture

Source: label statements in DSLD label 70346.

What else is on the label?

Other ingredients: Psyllium, Gelatin, Polysorbate 80, Caramel color, Shellac, Iron Oxide.

How many labels does Natural Fiber have?

One label is on file, entered on February 24, 2017.

  1. Label 70346 (current) Entered February 24, 2017 · on the market · 100 capsules · UPC 0 53041 65016 1

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names Guardian Drug Company (manufacturer), Dayton, NJ. All Guardian products.

Where next?