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“Calories 4” is not a number this panel may print

The Renew31 Supplement Facts panel prints Calories 4. 21 CFR 101.9(c)(1) requires calories to be declared to the nearest 5-calorie increment up to and including 50 calories, with amounts under 5 expressible as zero, and 21 CFR 101.36(b)(2)(ii)(A) applies that rule to a Supplement Facts panel. Below 50 that leaves 0, 5, 10. Four is not among them. No laboratory, no dose comparison and no second document is needed to see it, which is what makes this the cleanest finding on the label.

By the Getrenew31 Editorial Desk · Last updated October 11, 2026

The 60-second version

Read time under a minute
  1. The panel prints “Calories 4”. One gummy is the serving and the bottle holds 30, so that is also 120 calories over a 30-day bottle.
  2. 21 CFR 101.9(c)(1) fixes the increments. Calories below 50 are declared to the nearest 5-calorie step, and 21 CFR 101.36(b)(2)(ii)(A) applies that rule to a Supplement Facts panel.
  3. So below 50 there are three available values: 0, 5, 10. 4 is not one of them.
  4. Both readings stay open and the page gives both. Under 5 calories the lawful declaration is 0; at 5 or more it is 5 or 10. Either way the printed figure is not available.
  5. It is a labelling finding, not a safety one. Nobody is harmed by the difference between 4 calories and 5. What it tells you is who set the panel.

One digit, on one line, at the top of the panel

This post is about a single character. It is the first number on the Renew31 Supplement Facts panel, it sits on its own line with no percentage beside it, and it is the only finding on this label that needs nothing but the regulation and a glance.

Printed on the panel

Calories 4, under a serving size of 1 Gummy and 30 servings per container.

Take the scale of it first, so that nothing later reads as alarm. The serving is one gummy a day, so the panel figure is also the daily figure, and a 30-day bottle carries 120 calories in total. Against anything a person eats in a day that is nothing at all, and this post is not going to pretend otherwise.

What the digit is worth is something narrower. A Supplement Facts panel is a regulated document, and the values it may print in the calorie line are specified. This one is not among them.

The Renew31 Supplement Facts panel: serving size, calories, total carbohydrate, total sugars, an added sugars line, Bacillus coagulans in CFU, a Proprietary Blend of 430 mg with 9 botanicals indented beneath it, the footnotes and the Other Ingredients line
The calorie line is the first figure on the panel, with no percentage beside it because no Daily Value applies to it.

The rule, and the two regulations that carry it here

Calorie declarations are not free text. The increments are set in the food labelling regulation and imported into the supplement one, and the sentence is short enough to quote whole.

21 CFR 101.9(c)(1) sets how a calorie figure is expressed. Calories are “expressed to the nearest 5-calorie increment up to and including 50 calories” 21 CFR 101.9. The other end of the same sentence governs the larger figures and carries the permission that matters most here: declarations run in a “10-calorie increment above 50 calories, except that amounts less than 5 calories may be expressed as zero.” 21 CFR 101.9

“expressed to the nearest 5-calorie increment up to and including 50 calories”

“10-calorie increment above 50 calories, except that amounts less than 5 calories may be expressed as zero.”

21 CFR 101.36(b)(2)(ii)(A) 21 CFR 101.36 is what makes that rule apply to a Supplement Facts panel rather than only to a Nutrition Facts panel. Without it a reader would be comparing a supplement label against a food rule and the comparison would be worth nothing. With it, the calorie line on this bottle is governed by the sentence quoted above.

Two words in it do all the work. Increment, because it fixes the spacing of the available values rather than rounding to a tidy-looking number. And may, in the clause about amounts under 5 calories, because it is a permission rather than an instruction: a panel is allowed to declare zero there, and allowed not to.

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The three values this panel could have printed

Put the rule and the printed figure in the same table and the finding is a row rather than an argument.

The calorie values 21 CFR 101.9(c)(1) makes available to a panel below 50 calories, against the value this panel prints.
CaloriesAvailable to this panelWhy
0AvailablePermitted for a serving under 5 calories
4Not availableThe figure this panel prints
5AvailableThe nearest step above the printed figure
10AvailableThe next step up

Read the table as a list of permissions. Below 50 calories a panel may print 0, and the regulation says when: where the serving holds less than 5 calories. It may print 5. It may print 10. Each step is five apart because the regulation says the declaration is expressed to the nearest 5-calorie increment, and an increment is a step rather than a maximum.

4 is not a step. It is not the nearest 5-calorie increment to anything, and it is not zero. Whatever the gummy actually contains, there is no reading of the quoted sentence under which this is the figure that belongs on the line.

That is the whole finding, and it is worth being precise about what sort of finding it is. It is not a measurement of the gummy. It is a comparison between one printed character and one sentence of regulation, and anyone can run it in the time it takes to read them both.

Two readings, and this post keeps both open

There are exactly two things the printed figure can mean, and nothing published chooses between them. So both are set out, and neither is presented as the answer.

  • The serving holds under 5 calories. Then the lawful declaration is 0, because the regulation permits amounts under 5 calories to be expressed as zero, and the panel has printed a figure it was entitled to round away.
  • The serving holds 5 calories or more. Then the lawful declaration is 5 or 10, to the nearest increment, and the panel has printed a figure below the smallest step the regulation allows.

Notice what the two readings share. On the first, the panel has printed a figure where the regulation offered it zero. On the second, it has printed a figure below the increment the regulation sets. Neither reading rescues the line, and no third reading has been offered to this desk.

Notice also what neither reading supports. Nothing here says the gummy holds more calories than it claims, or fewer. The calorie content of a gummy is not published in the sense that matters: no laboratory result for this product reached this desk in either direction, and the testing and quality page says so at length. What is published is a declaration, and the declaration is in a form the rule does not provide for.

Why this is the cleanest finding on the label

Four lines on this panel can be set against a quoted regulation and arithmetic. This one is the cleanest of the four, and it is worth saying exactly why, because the reason is also the limit of what it proves.

What each of the four panel findings needs before it can be checked.
The findingWhat you need to check it
Calories 4 against the increment ruleThe regulation, and the panel. Nothing else
The missing Dietary Fiber lineThe regulation, the panel, and arithmetic on the declared 2 g
Bacillus coagulans in CFU and in no weightThe regulation, plus FDA’s 2018 guidance and the status of a draft
Added sugars at 0% against 1 g of total sugarsThe regulation, the Daily Reference Value, and the ingredient list

A finding that needs no inputs is a finding a reader can check without trusting the person who wrote it down. That is rarer than it sounds on a supplement label, where most arguments require either a dose somebody has published or a weight nobody has.

And it matters a second time, which is the real reason it leads. The same digit is what turns the missing Dietary Fiber line from an omission into a contradiction: reaching 4 calories from the declared 2 g of carbohydrate takes about a full gram of non-digestible carbohydrate, and a panel that holds a full gram of fibre may not leave the fibre line off. Without the 4, that argument has nothing to stand on. The next post works it through.

What it does not prove is anything about the formula. It tells a reader that this panel was not set by somebody working from 21 CFR 101.9, which is worth knowing before trusting the rest of it to be exact, and it stops there. No published trial on the finished Renew31 formula was supplied with this stock and none appears in any source this desk opened. Every reference on this site describes a single named ingredient, a category of products, or a labelling regulation.

The panel is published here before the checkout

Three bottles is $69 each with free US shipping, and the guarantee runs 60 days from purchase. Every line of the panel is on this site before you spend anything.

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Questions

Renew31: common questions

Why does the Renew31 panel print 4 calories?

That is the figure on the bottle, and it is not a value the panel may use. 21 CFR 101.9(c)(1) requires calories to be “expressed to the nearest 5-calorie increment up to and including 50 calories” 21 CFR 101.9, so the available values below 50 are 0, 5, 10.

What calorie values may a supplement panel print below 50?

0, 5, 10, in 5-calorie steps, with one extra permission: “10-calorie increment above 50 calories, except that amounts less than 5 calories may be expressed as zero.” 21 CFR 101.9 So a serving holding under 5 calories may be declared as zero.

Is 4 calories a lot?

No, and this post does not argue that it is. At 1 gummy a day it is 120 calories over the 30 days a bottle lasts. The finding is about which values a panel may print, not about the figure being large or small.

References

  1. Code of Federal Regulations, Title 21, Section 101.9. Nutrition labeling of food. https://www.govinfo.gov/content/pkg/CFR-2024-title21-vol2/xml/CFR-2024-title21-vol2-sec101-9.xml
  2. Code of Federal Regulations, Title 21, Section 101.36. Nutrition labeling of dietary supplements. https://www.govinfo.gov/content/pkg/CFR-2024-title21-vol2/xml/CFR-2024-title21-vol2-sec101-36.xml

Every source above was opened and read on October 11, 2026. None of them tested Renew31 itself. They describe the labelling regulations that govern this panel, which is a different thing from testing this finished formula.

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