What 27 Jars Reveal About the Number the Label Never Prints
Credit: Daily Vitality
You are standing in front of a wall of jars. One is $2.29. One is $9.19. They are roughly the same size, they are all called some version of "nut butter," and the front of every single one is telling you it is the wholesome choice. So you turn the jar around, the way you have been told to, and you read the ingredient list — and it tells you the order things appear in, but not how much of anything is actually in there.
That gap is bigger than it sounds. Two jars can both say "peanuts, sugar, palm oil, salt" in exactly that order, and one can be 96 percent peanut while the other is 82 percent. The label is identical. The price might be identical. What you are getting for your money is not.
So we went and got the number. We built a field of 27 jars spanning the whole aisle — mass-market sweetened peanut butters, stir-style naturals, store brands, almond butter at three price tiers, cashew butter, sunflower seed butter, and single-ingredient jars as the clean baseline. We captured every current label and every shelf price at one national retailer on one day. Then we worked out how much of each jar is nut, what that makes the real price of the nut you are buying, and how much you are quietly paying for the oil that came along with it.
The results reorder the aisle. The jar with the most protein per dollar is not the jar that wins. The winner is a store brand. The most expensive jar on the shelf finishes last by a distance. And the single most useful thing we found is not in the ranking at all — it is one number already printed on the back of the jar in your hand, which does almost all of this work for you in about three seconds.
Every price in this article was captured at Target on September 10, 2026, and every nutrient value comes from that jar's current published Nutrition Facts panel and ingredient statement on the same day. One retailer, one date, so the comparison is fair.
Here is the problem we had to solve first. US food labels list ingredients in descending order of predominance by weight, but declaring the percentage of an ingredient is optional. The regulation at 21 CFR 101.4 is conditional on this point: if a percentage is included, it has to be shown in parentheses and expressed by weight. If it is not included, nothing requires it. Almost no manufacturer includes it.
So the nut fraction cannot be read. It has to be derived. And the way in is protein.
Sugar contributes no protein. Oil contributes no protein. Salt contributes no protein. Every gram of protein in the jar came from the nut, which means the jar's protein density compared to the pure nut's protein density is the nut fraction. Divide one by the other and you have your answer. For the peanut baseline we used the USDA FoodData Central record for dry-roasted peanuts, which gives 24.4 grams of protein per 100 grams, with almond, cashew, and sunflower baselines pulled the same way.
Fat, it turns out, is useless here. Palm oil and hydrogenated vegetable oil sit at roughly the same fat density as the nut they displace, so a jar that is 90 percent peanut and a jar that is 100 percent peanut both print 16 grams of fat per serving. The fat line cannot see the difference. The protein line can.
From there the arithmetic is short. Protein per dollar is the grams of protein in the whole jar divided by what the jar costs. The real price per gram of nut is the jar price divided by the net weight times the derived nut fraction. And the added-oil tax — the premium you pay per gram of actual nut over the headline price per gram of product — reduces to something you can do in your head: one divided by the nut fraction, minus one. A jar that is 90 percent nut carries an 11 percent tax. A jar that is 75 percent nut carries a 33 percent tax. Price and jar size cancel out entirely.
We set the nut-fraction floor at 90 percent, and we show further down what happens when you move it.
Every derived nut fraction in that table carries an uncertainty band of roughly plus or minus six percentage points, and four jars carry no fraction at all because the method could not resolve them honestly. Both of those things are explained below rather than tidied away. A derived number without its error bar is not a measurement, it is a decoration.
The sections that follow walk the field in order of protein per dollar, from the jar that tops the raw ranking to the jar that finishes last. If you want the wider context on where nut butter sits against other protein sources, our ranking of the best protein per dollar across 25 foods covers that ground.
At $3.79 for 40 ounces, this is the cheapest jar per gram in the entire field, and by the naive metric it is not close. There are 248 grams of protein in that tub. That works out to 65.5 grams of protein per dollar — roughly two and a half times what the jar that actually wins this ranking delivers.
Then you read the statement. Target's listing gives it as "dry roasted peanuts, sugar, contains 2% or less of hydrogenated vegetable oils (rapeseed, cottonseed, and/or soybean), molasses, mono and diglycerides, salt". Seven grams of protein per serving puts its derived peanut fraction at 89.7 percent, with a band running from 83 to 96 percent. It misses a 90 percent floor by three-tenths of a point.
That is a knife-edge, and we are not going to pretend otherwise. What the number does tell you cleanly is the shape of the trade. The headline price works out to about 33 cents per 100 grams of product. The real price of the peanut inside is about 37 cents per 100 grams. You are paying a 12 percent premium on the nut for the roughly one-tenth of the tub that is something else.
Notice also the "and/or" in that oil declaration. That construction is permitted, and it means the label cannot tell you which of those three oils is in the jar in front of you — only which ones might be. It exists so that sourcing can vary without the label being reprinted.
Peter Pan should be the story of this article. At $2.49 for 16.3 ounces it declares 8 grams of protein per serving — the same as the single-ingredient jars — while listing "roasted peanuts, sugar, less than 2% of: hydrogenated vegetable oil (rapeseed and cottonseed), salt". Run the derivation and it comes out above 100 percent peanut, at 46.4 grams of protein per dollar. On those numbers it would win this ranking outright and by a mile.
It cannot be above 100 percent peanut. Its own ingredient list says there is sugar and oil in there.
So we checked the energy. A jar that is roughly 94 percent peanut with a little sugar and under 2 percent oil should land near 585 calories per 100 grams. Peter Pan's panel implies 625. That is about 7 percent higher than any composition its ingredient list allows, which means the serving being weighed is heavier than the 32 grams the calculation assumes — and the servings-per-container figure on the jar points at a third number again.
There is no reading of that panel where every declared value is simultaneously true. Rather than crown a winner on a figure that does not hold up, or quietly drop the row, we have left Peter Pan in the table with its measured protein per dollar and no derived fraction. This is the honest limit of the method, and it is worth knowing that a label can be internally inconsistent without being wrong in any way you could point to.
The rounding rules are part of why. Protein has to be declared only to the nearest gram, so a jar printing 8 grams might hold anywhere from 7.5 to 8.49 — and 7.5 grams would put Peter Pan back among the ordinary jars.
This is the identical formulation to the tub at the top of the list, in a 16-ounce jar at $2.29. Same ingredients, same derived 89.7 percent peanut, same 12 percent added-oil tax. The only thing that changed is the size, and the value fell from 65.5 grams of protein per dollar to 43.3.
That is worth sitting with, because it is a bigger swing than most of the composition differences in this whole field. The same pattern repeats across the aisle: Jif's 40-ounce jar returns 41.4 grams per dollar against 31.1 for the 16-ounce, and Skippy runs 36.0 against 33.8.
For a household that will finish a 40-ounce tub before it turns, size is the larger economic lever, and it is entirely independent of everything else this article measures. For a household that will not, buying the big jar is not a saving at all. Both of those are real situations, and the arithmetic does not care which one you are in.
Here is the piece of luck that makes the rest of this article defensible. Jif Natural Creamy is the only jar in the field that publishes its own nut fraction — the listing declares 90 percent peanuts right there alongside the statement "peanuts, sugar, palm oil, contains 2% or less of: salt, molasses." It was $5.99 on our capture date, marked down from a regular $6.99.
So we ran our derivation against it blind, and here is the worked example in full.
The panel declares 7 grams of protein per 2-tablespoon serving. A serving is 32 grams, so that is 7 divided by 32, times 100 — 21.875 grams of protein per 100 grams of product. The USDA figure for dry-roasted peanuts is 24.4 grams of protein per 100 grams. Divide one by the other: 21.875 ÷ 24.4 = 0.897, or 89.7 percent peanut.
Jif says 90. We got 89.7, without looking.
That agreement is what licenses applying the same three-line calculation to the other 26 jars, and it settled a choice we could otherwise only have argued about. Had we used the USDA record for raw peanuts, which reads 25.8 grams of protein, the same jar would have come out at 84.8 percent and the agreement would have vanished. Roasted is the right baseline because peanut butter is ground from roasted peanuts, and Jif's own label is the evidence.
At 41.4 grams of protein per dollar and a 12 percent added-oil tax, this jar sits mid-table. Its real contribution is that it proved the ruler.
These two jars sit side by side. The regular version, at $6.89, lists "roasted peanuts, sugar, hydrogenated vegetable oil (cottonseed, soybean and rapeseed oil) to prevent separation, salt". The Natural version, ten cents dearer at $6.99, lists "roasted peanuts, sugar, palm oil, salt."
Both declare 7 grams of protein per serving. Both derive to 89.7 percent peanut. Both carry a 12 percent added-oil tax.
The natural jar is not more peanut. It is the same amount of peanut with a different oil in it — palm instead of hydrogenated vegetable — and the only trace of the swap anywhere on the panel is saturated fat ticking up from 3 grams to 3.5. You are paying ten cents for a change of oil, and the shelf tag is describing which oil was added rather than whether one was.
We are reporting composition and price here, not adjudicating oils. But if you had assumed, as most people reasonably do, that stepping up to the natural version means stepping toward a jar with more nut in it, the numbers say that assumption does not survive contact with these two labels.
This jar breaks the derivation outright, and the reason is interesting enough to keep it in. The statement reads "peanuts, corn syrup solids, sugar, pea protein, contains 2% or less of: salt, fully hydrogenated vegetable oils (rapeseed and soybean), mono and diglycerides, molasses, magnesium oxide, niacinamide, ferric orthophosphate, zinc oxide, copper sulfate, pyridoxine hydrochloride, folic acid".
Pea protein is the fourth ingredient. The moment protein arrives from somewhere other than the nut, our protein anchor stops meaning anything — you can no longer read the nut fraction off the protein line, because the protein line is no longer purely a peanut signal. So this jar is reported with its measured protein per dollar and no fraction.
It is also the clearest illustration in the field of what "reduced fat" costs elsewhere on the panel. Against standard Jif Creamy, fat drops from 16 grams to 12. Carbohydrate rises from 8 grams to 15. Sodium goes from 140 milligrams to 190. Fourteen ingredients, against two in the jar that tops our floor-clearing ranking.
Here is the jar that tops the ranking once the floor is applied: $4.29 for 16 ounces, 113 grams of protein in the jar, 26.4 grams of protein per dollar, and an ingredient statement that runs to three words — "Organic peanuts, salt".
Eight grams of protein per serving puts its derived peanut fraction at 100 percent, with a band of 96 to 100, exactly as a two-ingredient jar should read. The real price of the peanut inside is 95 cents per 100 grams — identical to its headline price per 100 grams of product, because there is no added-oil tax to pay. Nothing in the jar is standing between you and the nut.
It is worth naming what that means against the premium end of the shelf. This store-brand jar delivers nearly four times the protein per dollar of Justin's Classic Almond Butter, and it costs less than half as much. The field was built specifically to test whether paying more buys you a better-composed jar, and across these 27 the answer is that it does not reliably do so.
We found the same pattern when we ran a full nutritional and price showdown on cottage cheese, Greek yogurt, and skyr — the premium tier charges for positioning far more often than it charges for composition.
At $4.69 for 16 ounces, Smucker's Natural returns 24.2 grams of protein per dollar at a derived 100 percent peanut, with the statement "peanuts, contains 1% or less of salt". Real price of the peanut: $1.03 per 100 grams. No added-oil tax.
There is a detail on this panel worth borrowing. It prints "added sugars 0 g" — a stated zero, which is a positive declaration that the manufacturer made. Several jars in our field simply returned no added-sugars figure at all from their published panel, which is a different thing entirely: an absence of data rather than an absence of sugar.
The distinction matters most on exactly the line most people check first. A blank is not a zero, and when you are comparing two jars it is worth knowing which one you are actually looking at.
A short ingredient list is a good signal, but it is not the same as a full jar. Justin's Classic Peanut Butter, $4.99 for 16 ounces, lists exactly two things: "dry roasted peanuts, palm oil". No sugar at all, which is genuinely unusual at this end of the shelf.
It still declares 7 grams of protein per serving, which puts it at a derived 89.7 percent peanut and a 12 percent added-oil tax — the same fraction as Jif and Skippy, arrived at by a completely different route. Where the mass-market jars spend their missing tenth on sugar and oil together, this one spends essentially all of it on palm oil.
At 19.9 grams of protein per dollar it sits well below the store-brand jars above it, and the real price of the peanut inside works out to $1.23 per 100 grams. The two-ingredient list is doing real work as a signal about what is not in the jar. It is not telling you how much peanut is.
This is as clean a comparison as the aisle offers. Smucker's sells a Natural and an Organic creamy peanut butter in the same 16-ounce jar, with statements that differ by a single word: "peanuts, contains 1% or less of salt" against "organic peanuts, contains 1% or less of salt".
Both declare 8 grams of protein per serving. Both derive to 100 percent peanut. The organic jar costs $6.29 against $4.69 — a $1.60 premium, or 34 percent — and returns 18.0 grams of protein per dollar against 24.2.
On the two things this article measures, composition and price, the certification bought no change in composition and cost a third more. That is not an argument against organic certification, which is about how the peanuts were grown rather than what fraction of the jar they make up. It is simply the number, held still, for a reader deciding where their grocery money goes. Our look at the real cost of eating healthy in every state puts that kind of premium in wider context.
If you have been reading the peanut numbers and wondering whether almond butter can compete, this is the jar that comes closest. It is $4.59 for 12 ounces, it returns 16.2 grams of protein per dollar, and its complete ingredient statement is one word: "Almonds".
Now the part that makes it a genuine find. Good & Gather's creamy almond butter, in the same 12-ounce jar with the identical one-word statement and the identical 7 grams of protein per serving, was $5.89 on the same day. That is $1.30 more, or 22 percent, and the only difference either label discloses is how finely the almonds were ground.
Priced per gram of actual almond, the crunchy jar is the cheapest almond butter in the entire field at $1.35 per 100 grams. If texture is not the thing you care about most, the aisle is offering the same product for a fifth less about eighteen inches away.
Gaps like that one are not unique to almond butter, and they are not distributed evenly between retailers either, as our look at which grocery stores offer the best nutrition per dollar found.
Sunflower seed butter is the one category where we could not produce a fraction we trust, and the reason is in our reference data rather than in the jar. SunButter Original, $7.39 for 16 ounces, lists "roasted sunflower seeds, sugar, salt" and declares 7 grams of protein per serving.
Run that against the USDA record for sunflower seed butter and it derives to 126 percent seed — which is impossible, because the jar declares added sugar. The USDA reference, published in 2019, reads materially lower in protein than every current commercial sunflower butter panel we captured. When the ruler disagrees with reality by that much, the honest move is to put the ruler down rather than publish a number.
So SunButter appears in the table with its measured 13.4 grams of protein per dollar and a dash where the fraction should be. Its no-sugar-added sibling declares the same 7 grams of protein with the statement "roasted sunflower seeds, salt," which suggests the seed fraction here is high — but suggests is as far as our evidence goes.
This is the pair that shows the added-oil tax more plainly than any calculation could. Good & Gather sells its creamy almond butter in two versions, both 12 ounces, both $5.89 on our capture date, sitting within arm's reach of each other.
The Stir version's ingredient statement is one word: "almonds." It declares 7 grams of protein, 0 milligrams of sodium, and 1.5 grams of saturated fat per serving.
The No Stir version lists "almonds, cane sugar, palm oil, sea salt". It declares 6 grams of protein, 65 milligrams of sodium, 2 grams of added sugars, and 2.5 grams of saturated fat.
Derived almond fraction: 100 percent against 90 percent. Added-oil tax: zero against 11 percent. Protein per dollar: 12.6 against 10.8. Identical price, identical size, roughly a tenth less almond in the jar — and the thing you are trading that tenth for is not having to stir.
Cedars-Sinai makes the qualitative version of this point in its comparison of nut butters, noting that products labeled "no stir" may also contain added oils. What the pair above adds is the size of it, in grams and in dollars, on two jars you can pick up in the same reach.
At $4.99 for 12 ounces, this jar lists just "cashews, safflower oil" — two ingredients, no sugar, no salt. It derives to 89.8 percent cashew with an 11 percent added-oil tax, and it returns 10.7 grams of protein per dollar, near the bottom of the field.
The reason is not the formulation. It is the nut. Cashews carry about 17.4 grams of protein per 100 grams against 24.4 for dry-roasted peanuts — roughly 40 percent less, before anyone adds anything to anything. A spotless two-ingredient cashew butter is beaten on protein per dollar by a six-ingredient peanut butter simply because of what the two nuts are.
This is the guardrail on reading the ranking as a purity score. A short ingredient list and a high nut fraction tell you how much of the jar is nut. They do not tell you what that nut brings, and on protein specifically, peanuts and almonds start from a materially higher place than cashews do.
That same botanical ceiling shows up whenever foods get compared head to head, which is what we found ranking 30 popular breakfast foods for protein, fiber, and calories.
Last place, and it is the priciest jar we captured. Justin's Vanilla Almond Butter is $9.19 for 12 ounces and lists "dry roasted almonds, organic powdered sugar (organic cane sugar, organic tapioca starch), organic cocoa butter, palm oil, organic vanilla powder (organic acacia gum, organic vanilla extract), sea salt". It declares 5 grams of protein and 5 grams of added sugars per serving.
Derived almond fraction: 75.1 percent, band 68 to 83. Added-oil tax: 33 percent, the highest in the field. Protein per dollar: 5.8 grams, which is roughly one-eleventh of what the cheapest store-brand peanut tub returns. The real price of the almond inside comes to $3.60 per 100 grams.
The internal comparison is the sharper one. Justin's Classic Almond Butter is the same 12 ounces at the same $9.19, with the statement "dry roasted almonds, palm oil," and it derives to 90.2 percent. The flavoring costs about fifteen points of almond fraction, and it costs them at exactly the same price.
None of which makes it a bad jar to enjoy. A flavored almond butter is a treat that happens to come in a nut butter jar, and treats are allowed. It is simply not what you would reach for if grams of nut per dollar is the thing you are optimizing.
Here is the finding we did not expect, and it is more useful than the ranking.
Because protein is declared only to the nearest gram, the derived fractions across the whole field do not spread out smoothly. They collapse into two clusters. Every peanut jar declaring 7 grams per serving computes to 21.9 grams of protein per 100 grams and a fraction near 90 percent. Every peanut jar declaring 8 grams computes to 25.0 and a fraction near 100 percent. There is nothing in between, and the clusters line up exactly with whether the ingredient statement carries added oil and sugar.
Which means you can skip everything above while standing in the aisle.
Check the serving size says 2 tablespoons, read the protein line, and you have the answer the label refuses to print. That single gram is the whole story.
The nut-fraction floor is the one editorial judgment in this entire calculation, so it is only fair to show what it does rather than to assert it.
At an 85 percent floor, 21 jars clear and Good & Gather Creamy 40 oz wins outright at 65.5 grams of protein per dollar. At a 90 percent floor, 8 jars clear and Good & Gather Organic Creamy 16 oz wins at 26.4. At a 95 percent floor, 6 jars clear — every one of them a single-ingredient or two-ingredient jar — and the winner does not change.
The useful thing there is the stability. The same jar wins at 90 percent and at 95 percent, so the verdict is not an artifact of where we happened to put the line. Below 90 the answer flips completely, because 89.7 percent is precisely where the entire mass-market cluster sits — every one of those jars crosses back over the line together.
If you weigh price more heavily than composition, drop the floor and buy the big tub. If you want the nut and nothing else, raise it. The arithmetic is the same either way — you are just choosing what you are buying. For the meal-planning end of that question, we costed hitting 100 grams of protein a day on $5 to the cent.
Three things, and they are worth stating plainly.
Label rounding. This is the big one. Protein declared to the nearest gram means a jar printing 7 grams might hold 6.5 or 7.49, which moves the derived fraction by about six points in either direction. That single rule is a larger source of uncertainty than every other choice we made combined, and it is why the table shows approximate fractions rather than decimals.
The baseline record. We used USDA's dry-roasted peanut figure of 24.4 grams of protein per 100 grams. Raw peanuts read 25.8, and using that would drop every peanut jar in the field by about five points. We can defend the choice because it reproduces Jif's own declared 90 percent, but a reader should know the answer moves with it.
The serving-size assumption. Every calculation here normalizes to a 32-gram serving, the reference amount customarily consumed for nut butters and the figure printed on every jar in the field that states grams at all. Where a panel's calories are inconsistent with that assumption, as Peter Pan's are, we said so rather than quietly adjusting it.
Prices are the most perishable thing here. Everything was captured on a single day at a single retailer, and at least two jars in the field were on markdown at the time. The composition numbers will outlive the prices by years.
About the Author
Ryan May is a digital publishing leader with more than 25 years of experience turning complex information into clear, useful editorial work. At Daily Vitality, he focuses on evidence-led reporting about nutrition, fitness, healthy aging, and long-term wellbeing, informed by his own interests in cooking, yoga, cycling, and sustainable healthy habits.
Because US labeling rules do not require it. Ingredients must be listed in descending order by weight, but declaring a percentage is optional, and almost no manufacturer chooses to. Jif Natural Creamy is the only jar in our 27-jar field that publishes its nut fraction, at 90 percent peanuts.
From the protein line. Sugar, oil, and salt contribute no protein, so every gram of protein came from the nut. Divide the jar's protein per 100 grams by the pure nut's protein per 100 grams and you have the nut fraction. For peanuts, that pure-nut figure is 24.4 grams per 100 grams.
It is how much more you pay per gram of actual nut than the jar's headline price per gram of product suggests. The formula is one divided by the nut fraction, minus one. A jar that is 90 percent nut carries an 11 percent tax; a jar that is 75 percent nut carries 33 percent. Price and jar size cancel out, so it depends only on composition.
Not in this field. Skippy Creamy and Skippy Natural Creamy both declare 7 grams of protein per serving and both derive to 89.7 percent peanut. The natural version costs ten cents more and swaps hydrogenated vegetable oil for palm oil. The shelf tag describes which oil was added, not whether one was.
Usually, but not reliably. Justin's Classic Peanut Butter lists only two ingredients — peanuts and palm oil — and still derives to about 90 percent peanut, the same fraction as six-ingredient mass-market jars. A short list tells you what is not in the jar. It does not tell you how much nut is.
It wins on raw protein per dollar by a wide margin — 65.5 grams per dollar, roughly two and a half times the jar that does win — and it is disqualified by a derived peanut fraction of 89.7 percent against a 90 percent floor. Drop the floor to 85 percent and it wins outright. We show the ranking at three different floors so you can pick your own.
Two reasons stack. Almonds cost more per pound than peanuts to begin with, and they carry slightly less protein — about 20.8 grams per 100 grams against 24.4 for dry-roasted peanuts. The best almond jar in our field returns 16.2 grams of protein per dollar against the best peanut jar's 26.4.
On protein per dollar, consistently yes, and by a lot. The identical Good & Gather formulation returns 65.5 grams per dollar in the 40-ounce tub against 43.3 in the 16-ounce jar. That only holds if the tub gets finished, though — an unfinished jar is not a saving.
They are different facts. A printed zero is a positive declaration the manufacturer made. A missing figure is an absence of data. Several jars in our field published no added-sugars value at all, and we did not treat those blanks as zeros.
Each for a stated reason. Jif Reduced Fat lists pea protein fourth, so protein no longer traces only to peanuts. SunButter Original derives above 100 percent against a USDA reference that reads lower than current commercial panels. And both Peter Pan sizes declare calories inconsistent with the serving weight the calculation assumes, so no fraction they produce would be trustworthy.
Roughly plus or minus six percentage points, driven almost entirely by protein being declared only to the nearest gram. That is precise enough to separate a 90 percent jar from a 100 percent jar, which is the distinction that matters, and not precise enough to rank two jars that both declare 7 grams.
No promises. Every price was captured at Target on September 10, 2026, and at least two jars were on markdown that day. The composition figures are far more durable than the prices — ingredient statements and nutrition panels change rarely, while shelf prices move weekly.
