Official product information
SodaSlim and Caffeine: 138 mg, Counted
How much caffeine is in one capsule, what that is next to coffee, tea and cola, six worked day totals built only from published figures, and who MedlinePlus says should ask a clinician first.
Written and reviewed by the SodaSlim Editorial Desk · Last updated September 24, 2026
Quick answer
One SodaSlim capsule carries 138 mg of caffeine anhydrous, declared on the panel, plus up to about 3.9 mg more from the green tea row — call it about 142 mg. MedlinePlus puts an 8-ounce coffee at 95–200 mg, so a capsule is roughly a cup. FDA cites 400 mg a day as the amount not generally associated with negative effects in healthy adults.
The number
138 mg on the panel, and about 142 mg in the capsule
The largest row on this label, declared as a number and as its own “Contains Caffeine” line. Both are to the label’s credit.
The panel declares caffeine anhydrous at 138 mg per capsule, and the green tea extract adds up to about 3.9 mg more (its standardisation says “<3% caffeine” of 130 mg). Call it about 142 mg a capsule. MedlinePlus puts an 8-ounce cup of coffee at 95–200 mg, so one capsule is a cup of coffee in a capsule — which is neither alarming nor trivial. FDA cites 400 mg a day as an amount “not generally associated with negative effects” in healthy adults, and notes there is “wide variation in both how sensitive people are to the effects of caffeine and how fast they eliminate it from the body”. The label declares “Contains Caffeine”, which is correct and useful. What it does not do is tell you the number is a third of a day’s allowance before you have had breakfast.
Where the second number comes from
The 138 mg is printed on the panel as its own row. The extra comes from the green tea row, and the label hands you the arithmetic: 130 mg of extract, standardised at “under 3% caffeine”. Three per cent of 130 mg is 3.9 mg, and the label says under, so up to 3.9 mg is the honest way to state it. Add the two and a capsule is about 142 mg. We are not going to print a more precise figure than the label supports.
138 mg
up to 3.9 mg
about 142 mg
400 mg a day
about a third
30
The comparison
What 142 mg is next to the things you already drink
Five reference figures, all MedlinePlus’s, with the ranges intact.
| What it is | Caffeine | The published range, and where it comes from |
|---|---|---|
| A capsule of SodaSlim | 138 mg | The panel, plus up to 3.9 mg more from the green tea row |
| An 8-ounce cup of brewed coffee | 95–200 mg | MedlinePlus: “An 8-ounce cup of coffee: 95-200 mg”. Its midpoint is about 150 mg |
| An 8-ounce cup of tea | 14–60 mg | MedlinePlus: “An 8-ounce cup of tea: 14-60 mg”. Its midpoint is about 37 mg |
| A 12-ounce can of cola | 35–45 mg | MedlinePlus: “A 12-ounce can of cola: 35-45 mg” |
| An 8-ounce energy drink | 70–100 mg | MedlinePlus: “An 8-ounce energy drink: 70-100 mg” |
Every figure above is MedlinePlus’s, and the ranges are theirs too — a cup of coffee is anywhere from 95 to 200 mg depending on the bean and the brew, so treat the total as an estimate rather than a measurement. The 400 mg line is FDA’s.
The line everything is measured against
FDA cites “400 milligrams a day — that’s about two to three 12-fluid-ounce cups of coffee — as an amount not generally associated with negative effects.” MedlinePlus puts the same figure more plainly: “For most people, it is not harmful to consume up to 400mg of caffeine a day.” So one capsule is roughly a third of that, and roughly one ordinary cup of coffee.
But 400 mg is a reference point rather than a threshold with a click at the end, and FDA says so in the same breath: “There is wide variation in both how sensitive people are to the effects of caffeine and how fast they eliminate it from the body.” If 142 mg at eight in the morning leaves you wired at midnight, that is your own variation talking and no national average overrules it. Total your own day against the 400 mg figure on the home page, where the capsule is already counted.
The arithmetic
Six worked days, using only published figures
The capsule at about 142 mg, plus MedlinePlus’s own drink ranges, against the 400 mg FDA cites.
| The day | Total caffeine | How the number was reached |
|---|---|---|
| One capsule, nothing else | about 142 mg | 138 mg from the panel plus up to 3.9 mg from the green tea row |
| Capsule + one 8 oz coffee | 237–342 mg | 142 plus 95–200. Under the 400 mg figure at either end |
| Capsule + one coffee + one cola | 272–387 mg | 142 plus 95–200 plus 35–45. Still under, not by much |
| Capsule + two 8 oz coffees | 332–542 mg | 142 plus 190–400. The top of this range is well over |
| Capsule + one energy drink + one tea | 226–302 mg | 142 plus 70–100 plus 14–60. Comfortably under |
| Capsule + three 8 oz coffees | 427–742 mg | 142 plus 285–600. Over at the bottom of the range as well |
The capsule is counted at about 142 mg throughout. Every drink figure is MedlinePlus’s and every range is theirs; the 400 mg reference is FDA’s.
What those six rows are actually showing
Not that the capsule is dangerous, and not that it is nothing. What they show is that it occupies a third of a day’s reference figure before you have made a decision about breakfast. Somebody who drinks one coffee a day can take it and stay inside the figure FDA cites with room to spare. Somebody who drinks three cannot, and had no way of knowing that from the bottle, which prints 138 mg and stops.
That is why this is a page rather than a paragraph. Caffeine is the one ingredient here you can plan around, and planning around it takes about ninety seconds. Caffeine is the one ingredient in a fat-burner you can actually do arithmetic with, so do it. Add the capsule to your coffees, your teas, your colas and anything labelled energy, and see where the day lands against 400 mg. If the total surprises you, that is the finding.
The pharmacology
What caffeine does, and how long it does it for
MedlinePlus describes caffeine as a substance that “stimulates your central nervous system, which can make you feel more awake and give you a boost of energy”, and notes that it “Caffeine is a bitter substance that occurs naturally in more than 60 plants” — which is why it appears twice on this panel, once as the anhydrous row and once inside the green tea extract.
How long it lasts
Caffeine peaks in the blood within about an hour and its effects last four to six hours. That single sentence is why the timing of this capsule matters more than the timing of most supplements. Taken at eight in the morning, it is largely behind you by early afternoon. Taken at four, it is still with you at bedtime, and MedlinePlus lists insomnia among the effects of having too much. The bottle does not say morning. The pharmacology does.
What too much feels like
MedlinePlus lists restlessness, shakiness, insomnia, headaches, dizziness, a rapid heartbeat, dehydration and anxiety. The useful thing about a declared 138 mg is that you can connect a jittery morning to a number. NCCIH adds the version that matters on a supplement rather than a drink: “some supplements contain large amounts of caffeine or caffeine-containing herbs such as guarana, which may cause increased heart rate and abnormal heart rhythms.”
Dependency, and stopping
Excessive use can cause “dependency, so you need to take more of it to get the same results”, and that has a specific consequence here. ODS notes that caffeine “might help you lose a little weight or gain less weight over time” and that tolerance develops — so the one measurable thing this capsule does is also the thing that fades. Stopping after a long run brings headaches, drowsiness and irritability for a few days.
The heavy-end figure belongs in one sentence and then nowhere else, because it is not a description of this product. FDA: “The FDA estimates toxic effects, like seizures, can be observed with rapid consumption of around 1,200 milligrams of caffeine, or less than 1/2 teaspoon of pure caffeine.” That is more than eight capsules’ worth at once, and the reason to state it is the label’s own first caution — do not exceed the recommended dose.
Before day one
Who should ask a clinician first
MedlinePlus’s own list, and the bottle’s caution panel, which covers part of it.
MedlinePlus names the groups who should check with a clinician before adding caffeine, and the list is longer than most people expect: people who are pregnant or breastfeeding, and people with sleep disorders, migraines or other headaches, anxiety, GERD or ulcers, heart arrhythmias, or high blood pressure. The bottle covers part of this ground already — its caution panel names under-18s, pregnancy, nursing and anybody taking a medication or living with a medical condition.
Two things the caffeine sits next to
First, the other stimulant source in the same capsule: the green coffee bean row carries caffeine of its own, and ODS notes that stimulant ingredients “can cause problems at high doses or combined with other stimulants”. Second, the two rows with liver reports — nothing to do with caffeine, but in the same capsule on the same schedule.
The question to answer before the first capsule
Not “is 138 mg a lot?” — on its own it is about a cup of coffee. The question is what your day already contains. If the honest answer is two large coffees and something from a can in the afternoon, this capsule is not adding a supplement to your morning, it is adding a third coffee to a day already close to the figure FDA cites. If the answer is one cup with breakfast, it is not.
Either way the number is printed, which is the part this label deserves credit for. You can only count what you can see, and here you can see it. Add your own day up on the home page, or read the how to take it page for the timing.
Questions
SodaSlim FAQ: caffeine questions
How much caffeine is in one capsule?
138 mg of caffeine anhydrous, plus up to about 3.9 mg more from the green tea extract, whose standardisation reads “<3% caffeine”. Call it about 142 mg. MedlinePlus puts an 8-ounce cup of coffee at 95–200 mg.
Is 138 mg of caffeine a lot?
It is about a cup of coffee, so on its own no. The question is your total. FDA cites 400 mg a day as not generally associated with negative effects in healthy adults, and notes “wide variation” in how people respond.
Can I drink coffee as well?
You can, and this is the arithmetic worth doing. One capsule plus two 8-ounce coffees is already somewhere between 330 and 440 mg against FDA’s 400 mg figure. The calculator on the home page does the sum for you.
Who should avoid the caffeine entirely?
MedlinePlus names people who are pregnant or breastfeeding, and people with sleep disorders, migraines, anxiety, GERD, heart arrhythmias or high blood pressure, as reasons to talk to a provider about caffeine. The label already rules out under-18s and pregnancy.
Can I become dependent on it?
On the caffeine, yes, in the ordinary way. MedlinePlus: excessive use can cause “dependency, so you need to take more of it to get the same results”, and stopping brings headaches, drowsiness and irritability for a few days.
References
Sources for this page
- U.S. Food and Drug Administration. Spilling the Beans: How Much Caffeine is Too Much?. www.fda.gov. Accessed September 24, 2026.
- MedlinePlus, U.S. National Library of Medicine. Caffeine. medlineplus.gov. Accessed September 24, 2026.
- Office of Dietary Supplements, National Institutes of Health. Dietary Supplements for Weight Loss: Fact Sheet for Consumers. ods.od.nih.gov. Accessed September 24, 2026.
- National Center for Complementary and Integrative Health, NIH. 6 Things To Know About Dietary Supplements Marketed for Weight Loss. www.nccih.nih.gov. Accessed September 24, 2026.
- National Center for Complementary and Integrative Health, NIH. Green Tea. www.nccih.nih.gov. Accessed September 24, 2026.
Next
Keep reading
The timing, and the rest of the routine
One capsule daily, why the morning instruction is the seller’s, and what to do about a missed day.
Read it →The other four rows
Green coffee bean, raspberry ketone, garcinia and green tea, with amounts and federal verdicts.
Read it →The whole label
Including the “Contains Caffeine” line, the caution panel and the storage instruction.
Read it →See SodaSlim on the official page
138 mg of caffeine a capsule, declared as a number and as its own line on the wrap. One capsule daily, 30 capsules a bottle, thirty days. 60 days from purchase to change your mind, and the price is shown at checkout.
Price shown at checkout · 60-day window from the date of purchase · ships from inside the US · the label’s own support line is +1 (302) 200-3480