Label reading
The Serving Size Problem
The serving size is the most important number on a supplement label and the one people read last. It decides how long a bottle lasts, what the product costs per day, how much of each ingredient you are actually taking, and whether a pack you bought was the right size. Without it, none of those can be calculated.
The number everyone skips
Ask someone what they look for on a supplement label and they will say the ingredients, or the amounts, or the price. Almost nobody says the serving size, which sits at the very top of the panel in small type and is the number every other number depends on.
It is the denominator. The amounts are per serving. The bottle's life is the count divided by it. The cost per day is the price divided by that. Change the serving size and every other figure on the label changes with it.
The four things it decides
How long a bottle lasts
A 30-count jar at one a day is a month. At two a day it is a fortnight. Same jar, half the value.
What it really costs per day
Price divided by days of supply. Without the serving size there are no days of supply.
How much you are taking
Amounts are stated per serving, not per gummy or capsule. A 200 mg figure on a two-gummy serving is 100 mg per gummy.
Whether your pack was sensible
A six-pack bought expecting six months is three months if the serving is two a day.
The 30-count trap
Thirty is the most common count for a supplement gummy jar, and it invites an assumption: thirty gummies, thirty days, one a month. Plenty of products are exactly that.
Plenty are not. A two-gummy serving on a 30-count jar gives you fifteen days, and the jar still looks like a month's supply on the shelf. It is not a trick — the panel says so plainly — it is just a place where an assumption does the work of a fact.
| One gummy a serving | Two gummies a serving | |
|---|---|---|
| Jar count | 30 | 30 |
| Days of supply | 30 | 15 |
| Cost per day at $50 a jar | $1.67 | $3.33 |
| Six-pack duration | 180 days | 90 days |
| Jars needed for a 60-day test | 2 | 4 |
The $50 is invented so the arithmetic is visible. Everything else in that table is a straight consequence of one line at the top of a panel.
On the product this site sells, that line was not supplied
Which is why our pricing page tells you to buy the smallest pack first, and why we will not print a cost per day. Read the panel on your own bottle before you scale up.
60-day money-back guarantee · Questions first? Call +1 (302) 200-3480
What happens when it is missing
Occasionally a product's marketing material omits the serving size entirely. The panel on the bottle will carry it — that is required — but if you are deciding before you buy, you are deciding without it. Four consequences follow.
- You cannot compare it with anything. Cost per day is the only fair comparison between two supplements, and it is unavailable.
- You cannot size your order. Three bottles might be three months or six weeks.
- You cannot check any amount against research, even if amounts were published — because amounts are per serving.
- You cannot quantify an interaction. If an ingredient matters to your clinician, "some amount, some number of times a day" is not an answer.
The fourth one is the serious one
Transparency arguments are usually about value. This one is about a conversation with a pharmacist, and it is the reason we treat a missing serving size as a safety issue rather than a marketing one.
Why it goes unpublished
Rarely for sinister reasons. Marketing artwork is designed to sell a feeling, and a serving size is an administrative detail that makes a beautiful panel look like a form. It gets left off a lifestyle image the way an ingredient list gets left off a perfume ad.
The effect is the same regardless of intent. A buyer decides without the denominator, and finds out afterwards whether the jar they bought was a month or a fortnight.
There is also an uncomfortable version: on a product where a two-gummy serving would make the price per day look high, leaving the number off the marketing is worth money. We have no evidence that is what happened with any particular product, and it is worth knowing that the incentive exists.
How to protect yourself
Look for the serving size before the ingredient list
It is the first line of the panel and the last thing most people read.
If it is not on the product page, assume the worst case
Plan for two a day. If it turns out to be one, you have a pleasant surprise instead of an unpleasant one.
Buy the smallest pack when it is unknown
You cannot value a product you cannot calculate. Buy once, read the panel, then scale.
Read the panel the day the box arrives
Not the day you finish the jar.
Recalculate before you reorder
Now you have the number, do the sum properly.
The buying checklist that this comes from is on our gummy guide, and the pack arithmetic for this product is on the pricing page.
How to find it in three seconds
On a physical bottle it is always in the same place: the first line of the Supplement Facts panel, above the ingredient rows and usually in smaller type than anything else on the label.
On a product page it is harder, and the difficulty itself is informative. A well-documented product shows the panel as an image or transcribes it in full. A less careful one lists ingredients in marketing copy and leaves the panel to the bottle. If you have to hunt for the serving size before buying, note that you had to.
- On the bottle: first line of the panel.
- On a good product page: in a panel image, or in a transcribed table.
- On a marketplace listing: sometimes in the bullet points, sometimes only in a photograph of the label — zoom in.
- Nowhere at all: assume the worst case and buy the smallest pack.
The question to ask before you reorder
By the time you are reordering, you have the number. Use it, because the first purchase was made without it and the second does not have to be.
Work out your real cost per day
Pack price divided by count, multiplied by the serving size.
Compare that with one alternative
A disclosed capsule version of something similar. It takes five minutes and it is the only honest comparison available.
Decide whether you are paying for the format
If the gummy costs more per day for less active, you are. That can be a fair trade if it is the reason you actually take it.
Then size the pack properly
Now, and only now, a six-pack is a rational purchase rather than a bet.
That sequence — buy small, read the panel, do the sum, then scale — is the whole of our pricing advice, and it comes from this one missing line.
The version of this that applies to capsules
Everything above is sharper on a gummy, but none of it is unique to one. A 60-capsule bottle at two capsules a day is a month; at three it is twenty days; at four it is a fortnight. Exactly the same arithmetic, and exactly the same tendency to assume the count is the day count.
Four-capsule serving sizes are common in disclosed formulas, for a good reason: that is how you fit real amounts into capsules. It makes the bottle look expensive per day and the formula look honest, which is a trade some manufacturers are willing to make and others are not.
Where this leaves a buyer
With one instruction, and it is not a satisfying one: buy the smallest pack of anything whose serving size you cannot see, read the panel the day it arrives, and do the arithmetic before you commit to more. It is slower than clicking the six-pack, and it is the only approach that cannot go badly wrong.
One line decides the rest
Find it before you buy if you can, and the day the box lands if you cannot.
60-day money-back guarantee · Questions first? Call +1 (302) 200-3480