Guide
How to Read a Supplement Facts Label, Using the Olivaro Bottle as an Example
Read a Supplement Facts panel in six steps: serving size, servings per container, each amount with its %DV, any proprietary blend, other ingredients, then the claims and their asterisk. On Olivaro, that gives 1 mL per serving, 0.7 mcg chromium (2% DV) and a 200 mg blend whose 22 ingredients have no individual amounts.
Written by the Olivaro research deskUpdated
Overview
What are the 6 parts of a Supplement Facts panel?
Every panel has the same six parts. Learn them once and any bottle takes five minutes.
| # | Part | What it tells you | On Olivaro |
|---|---|---|---|
| 1 | Serving size | How much one dose is | 1 mL (1 dropper) |
| 2 | Servings per container | How many doses are in the bottle | 30 |
| 3 | Amount and %DV | How much of each nutrient, against a daily reference | Chromium 0.7 mcg, 2% DV |
| 4 | Proprietary blend | Total weight of a mix, ingredients by rank | 200 mg, 22 ingredients |
| 5 | Other ingredients | Base, sweeteners, preservatives, flavors | Glycerin, water, xylitol and 6 more |
| 6 | Claims and asterisk | What the maker says, and the FDA statement it points to | "Balanced Blood Sugar Advanced Support*" |
Parts 1 and 2
How do serving size and servings per container work?
Every amount on the panel is per serving. Multiply by the servings you take each day to get your daily total.
On Olivaro, one serving is 1 mL, and the bottle holds 30. The label permits 1 or 2 droppers a day. That choice changes everything downstream.
| Droppers per day | Chromium per day | Blend per day | Days per bottle |
|---|---|---|---|
| 1 | 0.7 mcg | 200 mg | 30 |
| 2 | 1.4 mcg | 400 mg | 15 |
Cost works the same way. A $49 bottle comes to about $1.63 per day at 1 dropper and $3.27 at 2.
Part 3
What does %DV mean on a supplement label?
%DV compares one serving to a daily reference amount. A low number means the serving gives a small share of that reference.
The Daily Value for chromium is 35 mcg (NIH ODS, Chromium). Olivaro gives 0.7 mcg per mL, which is 2%. Blood sugar studies used 200 to 1,000 mcg a day, so even 2 droppers sit about 140 times below the low end.
- A dagger (†) means no Daily Value exists. Olivaro's blend line carries one.
- A high %DV is not automatically better. Check the upper limit for that nutrient.
Part 4
What does a proprietary blend hide, and what can you still work out?
A blend hides each ingredient's amount but not its rank. Under 21 CFR 101.36, the label must show the blend's total weight and list ingredients from most to least by weight (21 CFR 101.36 (eCFR)).
That rank gives you a ceiling. The ingredient in position k can weigh no more than the total divided by k. If it weighed more, every ingredient above it would weigh more too, and the sum would pass the total.
| Position | Ingredient | Ceiling per mL | Ceiling at 2 mL | Amount studied per day |
|---|---|---|---|---|
| 4 | African mango | 50 mg | 100 mg | 300 mg (NIH ODS, Dietary Supplements for Weight Loss) |
| 8 | Gymnema | 25 mg | 50 mg | 200 to 400 mg (Drugs.com, Gymnema monograph) |
| 12 | Panax ginseng | 16.7 mg | 33.3 mg | About 100 mg to 20 g (Shishtar et al., PLoS One 2014) |
| 16 | L-arginine | 12.5 mg | 25 mg | 2 to 20 g (NIH ODS, Exercise & Athletic Performance) |
| 17 | Beta-alanine | 11.8 mg | 23.5 mg | 1.6 to 6.4 g (NIH ODS, Exercise & Athletic Performance) |
| 22 | L-carnitine | 9.1 mg | 18.2 mg | 2 to 3 g (NIH ODS, Carnitine) |
Even at its ceiling, gymnema at 2 droppers reaches a quarter of the low studied amount. The full list sits on the Olivaro ingredients page.
Part 5
What are "other ingredients" on a supplement label?
They are everything that is not an active ingredient: the base liquid, sweeteners, preservatives and flavors. They still matter for allergies, pets and taste.
| Base | Glycerin, water |
|---|---|
| Sweeteners | Stevia extract 97% (Reb A), xylitol |
| Preservatives | Sodium benzoate, potassium sorbate |
| Flavor and acidity | Organic lemon extract, citric acid, natural flavors |
High-purity Reb A has GRAS notices the FDA did not question (FDA, Aspartame and Other Sweeteners). Xylitol is the one to act on: it can cause a fast, dangerous blood sugar drop in dogs (FDA, Paws Off Xylitol). The label does not claim vegan, gluten-free or allergen-free status.
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What does the asterisk on a supplement claim mean?
It points to the FDA statement. The statement says the FDA has not evaluated the claim and the product is not intended to diagnose, treat, cure or prevent any disease.
Claims like "supports" or "helps maintain" are structure-function claims. They describe a body function, not a disease. Olivaro's front panel uses four, each with an asterisk:
- "Balanced Blood Sugar Advanced Support*"
- "Fasting Blood Sugar Health Support*"
- "Clean Ingredients*"
- "Balanced Form System*"
The FTC expects health claims to rest on good human trials of the same product and dose. A disclaimer does not fix a misleading claim (FTC, Health Products Compliance Guidance). No trial of Olivaro has been published, so read these lines as the maker's description, not as test results.
Registration
Is an FDA-registered facility the same as FDA approval?
No. Registration puts a facility on the FDA's list. The FDA does not approve dietary supplements for safety or effectiveness before they are sold (FDA, Using Dietary Supplements).
Worked example
Olivaro's full label, read line by line
Below is every readable line on the bottle, typed out. Use it to practice the six steps.
| Front of the bottle | Olivaro · Balanced Blood Sugar Advanced Support* · Fasting Blood Sugar Health Support* · Clean Ingredients* · Balanced Form System* · 30ML | 1FL OZ · Dietary Supplement |
|---|---|
| Logo | Navy Olivaro wordmark under a small Israeli flag, on a cream label; icons for a drop, a leaf and a balance scale |
| Serving size | 1 ml |
| Servings per container | 30 |
| Chromium (as chromium picolinate) | 0.7 mcg, 2% Daily Value |
| Proprietary blend | 200 mg (Daily Value not established): Maca (Lepidium meyenii) Root Extract, Grape (Vitis vinifera) Seed Extract, Guarana (Paullinia cupana) Seed Extract, African Mango (Irvingia gabonensis) Seed Extract, Eleutherococcus Senticosus Root Extract, Astragalus Root Extract, Green Tea (Camellia sinensis) Leaf Extract, Gymnema Leaf Extract, Coleus Forskohlii Root Extract, Capsicum Annuum Fruit Extract, Grapefruit (Citrus paradisi) Fruit Extract, Panax Ginseng Aerial Extract, Raspberry Ketones, L-Glutamine, L-Tyrosine, L-Arginine Base, Beta-Alanine, Monoammonium Glycyrrhizinate, GABA (Gamma amino butyric acid), L-Ornithine HCL, L-Tryptophan, L-Carnitine Base |
| Other ingredients | Glycerin, Water, Organic Lemon Extract, Stevia Extract 97% (Reb A), Xylitol, Sodium Benzoate, Potassium Sorbate, Citric Acid, and Natural Flavors |
| Suggested use | Shake well before each use. Take 1 or 2 droppers full daily. Place in mouth and swallow. |
| Caution | Do not exceed recommended dose. Pregnant or nursing mothers, children under the age of 18 and individuals with a known medical condition should consult a physician before using this or any dietary supplement. |
| Storage | Keep away from heat, light, and humidity to preserve freshness. Keep out of the reach of children. Do not use if safety seal is damaged or missing. Store in a cool, dry place. |
| Origin | Made in the USA with globally sourced ingredients. This product has been manufactured in an FDA registered facility. |
| Distributed by (as printed) | Instituto Experience |
| FDA statement | These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. |
Lot and CoA codes from the seller are reference numbers, not lab results. See our quality check.
Your turn
A five-minute label check for any supplement
Find the daily total
Serving size times servings per day. Then work out how long the bottle lasts.
Compare to research
Look up the studied dose for each printed amount.
Rank the blend
Divide the blend weight by each position to get a ceiling.
Flag interactions
Circle grapefruit, licorice, ginseng, caffeine sources and amino acids. Bring the list to your pharmacist. Talk to your doctor before you change any diabetes medicine.
FAQ
Reading supplement labels: common questions
What is a proprietary blend on a supplement label?
A proprietary blend is a mix of ingredients listed under one total weight. Federal rules let the maker hide each ingredient's amount, as long as ingredients appear from most to least by weight. Olivaro's blend weighs 200 mg per mL and lists 22 ingredients that way.
Are proprietary blends bad?
They are legal, but they make dose checks impossible. You cannot compare a hidden amount with the dose used in studies. You can still work out a ceiling from label order. For Olivaro, that ceiling shows key ingredients sit well below studied amounts even in the best case.
What does % Daily Value mean on Olivaro?
It compares one 1 mL serving with a daily reference. Olivaro's chromium is 0.7 mcg per serving, which is 2% of the 35 mcg Daily Value. The blend has a dagger symbol instead, which means no Daily Value has been set for those ingredients.
Does the FDA approve Olivaro?
No. The FDA does not approve any dietary supplement for safety or effectiveness before sale. Olivaro's label says it is made in an FDA-registered facility. Registration lists the facility with the agency; it is not a review of the product or its claims.
Why does Olivaro have xylitol?
Xylitol is one of two sweeteners in Olivaro's other ingredients, along with stevia Reb A. It adds sweetness without listed sugar. It is dangerous to dogs, causing a rapid blood sugar drop, so keep the bottle out of their reach and call a vet if a dog gets into it.
How do I read the order of ingredients in a blend?
The first ingredient weighs the most and the last weighs the least. Divide the blend total by an ingredient's position to get its highest possible amount. In Olivaro, L-carnitine is 22nd of 22, so it holds at most about 9 mg per mL.
Who wrote this
Written and reviewed by
We start from the bottle label, then check every claim against government and peer-reviewed sources linked on the page.
Last updated . Read our editorial standards and how we check reviews. This website is run by an authorized U.S. retailer, not by the manufacturer. We earn money when you buy through our order links.
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