Skip to main content
Knowledge we build together Honest and transparent Real people, real data

Protein Iced Coffee self-test: best flavour, clearest response

ID: SWF-T-002Author: StoffwechselFitLast updated: 22 Jul 2026

🌐 Translated from the German original. Wording has been localised for English readers; in case of doubt, the German version is authoritative.

Topic illustration: Protein Iced Coffee self-test: best flavour, clearest response
Protein Iced Coffee self-test: best flavour, clearest response

The product

The drink is a protein powder in an iced-coffee format. The preparation is printed on the tub: 25 g of powder, that is one level scoop, in 300 ml of cold, unsweetened almond drink, mixed in a shaker or blender. According to the label the manufacturer is Quality First GmbH in Elmshorn, produced in Germany. The flavour is called Dark Cookie Crumble – the powder contains visible dark cookie pieces.1

Tub of the More Nutrition Protein Iced Coffee in the Dark Cookie Crumble flavour
Fig. 1: The product tested – More Nutrition Protein Iced Coffee, Dark Cookie Crumble flavour.

My morning protocol

All my product tests follow the same pattern in the morning so that they stay comparable with each other: prepare the drink, drink it, then a 45-minute low impact ride on the Peloton bike straight afterwards, and record the CGM curve. That is exactly why I started this routine in the first place – I deliberately pair the morning protein drink with cycling so that blood sugar does not climb too far in the morning. It works cleanly for me, but it is part of the set-up, not a coincidence.

My morning protocol for every product test Four steps in an identical routine. First prepare: 25 grams of powder in 300 millilitres of unsweetened almond drink. Second drink it in the morning before training, with the starting value noted on the CGM. Third a 45 minute low impact ride on the Peloton bike. Fourth document the CGM curve with rise, peak and return to the target range. A personal routine, not a general recommendation. My morning protocol for every product test Always identical so the tests stay comparable · single-case observation (n=1) 1Prepare25 g of powder (1 scoop)in 300 ml of unsweetenedalmond drink2Drinkin the morning, beforetraining – starting valuenoted on the CGM3Ride45 minutes of low impactriding on thePeloton bike4Documentrecord the CGM curve:rise, peak, returnto the target range Every test is built the same way: same drink, same amount, same training, same time of day.
Fig. 2: Always the same sequence – only then can two products be compared at all.

Flavour and texture: my favourite so far

On taste, this is the best product of the series for me. The coffee flavour is clearly there, but it is subtle rather than overpowering. The dark cookie side, by contrast, comes through very well. The result is a rounded, pleasant experience, as coherent as the marshmallow flavour. The texture is perfect for me too – creamy, with no powdery aftertaste.

A level scoop of iced coffee powder held over a shaker
Fig. 3: 25 g of powder, one level scoop – exactly as stated on the tub.
☕ Drink it promptly – otherwise it turns into cookie milk

The cookie pieces dissolve over time. Leave the drink standing and you end up with a kind of cookie milk. That tastes very good as well and is still easy to drink during training – you just lose the little pieces.

The prepared Protein Iced Coffee in a glass with a fine head of foam
Fig. 4: Prepared with 300 ml of unsweetened almond drink.

The nutrition in detail

One serving, that is 25 g of powder in 300 ml of unsweetened almond drink, provides 158 kcal, 19 g of protein, 4.1 g of carbohydrates of which 1.6 g sugar, 7.0 g of fat, 1.5 g of fibre and 81 mg of caffeine according to the label. The powder on its own comes to 378 kcal, 65 g of protein, 16 g of carbohydrates and 323 mg of caffeine per 100 g.1

Protein Iced Coffee: the nutrition Two nutrition cards. Per serving, that is 25 grams of powder in 300 millilitres of unsweetened almond drink: 158 kilocalories, 19 grams of protein, 4.1 grams of carbohydrates of which 1.6 grams sugar, 7.0 grams of fat, 1.5 grams of fibre and 81 milligrams of caffeine. Per 100 grams of powder: 378 kilocalories, 65 grams of protein, 16 grams of carbohydrates of which 6.6 grams sugar, 5.9 grams of fat, 2.3 grams of fibre and 323 milligrams of caffeine. Most of the fat comes from the almond drink. Protein Iced Coffee: the nutrition More Nutrition · Dark Cookie Crumble · values per the label Per serving (25 g in 300 ml unsweetened almond drink)Energy158 kcalProtein19 gCarbohydrates4.1 gof which sugar1.6 gFat7.0 gFibre1.5 gCaffeine81 mg Per 100 g of powderEnergy378 kcalProtein65 gCarbohydrates16 gof which sugar6.6 gFat5.9 gFibre2.3 gCaffeine323 mg Most of the fat comes from the almond drink, not the powder. 81 mg of caffeine is roughly one cup of coffee.
Fig. 5: The nutrition per serving and per 100 g of powder – as printed on the tub.

At first glance the values look somewhat higher than for a plain shake. That impression is partly misleading: most of the fat does not come from the powder but from the almond drink – the powder itself contributes only about 1.5 g of fat per serving. With unsweetened almond drink the serving stays within reason; with cow's milk the sum would look markedly different. And the 81 mg of caffeine is roughly one ordinary cup of coffee.

Back of the tub showing the nutrition table and the preparation advice
Fig. 6: The nutrition table on the tub – the basis for every figure in this article.

What my blood sugar did

This time I recorded the whole morning without gaps. At 08:19 I was at 119 mg/dl – calm and flat, as it had been all night. At 08:22 I drank the shake and logged it straight away in the Libre app, generously rounded up to 6 g of carbohydrates. Five minutes later I was on the bike.

Screenshot of the Libre app showing 122 mg/dl at 08:22 with the note about the iced coffee
Fig. 7: The starting point – 122 mg/dl, with product and amount logged directly in the app. The app interface is in German.

Then something happened that I had not expected: the value kept climbing even though the training was already under way. At 08:30 it was 131, at 08:37 it was 143, at 08:44 it was 145 – and at 08:46, roughly 19 minutes into the ride, it reached 149 mg/dl. That was the highest value of the morning.

Screenshot of the Libre app showing 149 mg/dl at 08:46, still inside the target range
Fig. 8: The highest value – 149 mg/dl at 08:46, in the middle of the training session.
Time Reading What was happening
08:19 119 mg/dl starting value, fasted
08:22 122 mg/dl drink consumed, logged in the app
approx. 08:27 start of a 45-minute low impact ride
08:30 131 mg/dl 3 minutes into the training
08:37 143 mg/dl 10 minutes into the training
08:44 145 mg/dl 17 minutes into the training
08:46 149 mg/dl highest value, 19 minutes into the training
09:11 121 mg/dl shortly before the end of the 45 minutes
09:24 118 mg/dl after a 10-minute cool-down
564 Glucose curve on 22 July 2026 between 8:15 and 9:30 in the morning. Starting value 119 mg per decilitre at 8:19. At 8:22 the Protein Iced Coffee was drunk, value 122. At about 8:27 a 45-minute low impact ride began. The value kept rising despite the training in progress: 131 at 8:30, 143 at 8:37, 145 at 8:44 and, as the highest reading, 149 at 8:46. It then fell again: 121 at 9:11 shortly before the ride ended and 118 at 9:24 after a ten-minute cool-down. Every reading stayed inside the target range of the app. 564 22 July 2026 · single-case observation (n=1) · spot readings, interpolated in between Target range100120140160mg/dl08:1508:3008:4509:0009:1509:30Drink 08:22 (122)Ride starts ~08:27Ride ends ~09:12Peak 149 · 08:46118 · 09:24 Every reading stayed inside the app’s target range throughout. The rise fell in the first half of the training.
Fig. 9: The measured curve. The dots are spot readings; the line between them is interpolated.

After that the curve turned. At 09:11, shortly before the 45 minutes were up, I was back at 121 mg/dl. Following a ten-minute cool-down I was at 118 mg/dl at 09:24 – just below my starting value.

Screenshot of the Libre app showing 121 mg/dl at 09:10 with the 45-minute training note
Fig. 10: Shortly before the end of the session – 121 mg/dl, with the 45 minutes logged as physical activity.
Screenshot of the Libre app showing 118 mg/dl at 09:24 with the full curve
Fig. 11: The end – 118 mg/dl after the cool-down, with the peak clearly visible in the curve.
✅ An important qualification: everything stayed in the target range

Throughout the whole period the app displayed „glucose in target range“ – including at 149 mg/dl. So „the clearest response of my test series“ means: the largest rise I have yet seen with one of these drinks (about +30 mg/dl against the starting value), not a spike out of range. That distinction matters to me.

The real finding: the rise came despite the training

For me this is the most important observation of the test. Riding in the morning is precisely what I do so that the value does not run away. In the first 20 minutes, though, the training did not prevent the rise – it reliably brought it back afterwards. Two different things, which I had previously lumped together in my head.

That fits a pattern I have described before in the context of exercise: in the early phase of a session the value can rise before it falls. Anyone measuring only right after the start therefore sees a different picture from someone who looks an hour later. Here two things overlap – the absorption of the drink and the onset of the exertion – and the result can only be read at the end of the session.

🔬 What this test cannot answer

How high the value would have climbed without the bike. The comparison run is missing: the same drink, the same time of day, without training. Without that counter-test it remains open how much of the return to 118 mg/dl is down to the training and how much would simply have been the normal course.

Why the carbohydrates do not explain this on their own

4.1 g of carbohydrates is little. For comparison: a small bread roll is around 20 g, so the serving is about a fifth of that. Even the 6 g I generously entered into the app does not add up on paper to a rise of 27 mg/dl. That is exactly why it is worth looking honestly at the other candidates – and at what is documented and what is not.

What might explain the rise – an honest assessment Four possible explanations with research grades. First the carbohydrate amount, established: 4.1 grams per serving per the label, too little as the sole explanation for a rise of about 30 milligrams per decilitre. Second the morning hour, plausible: insulin action is physiologically weaker in the morning, the dawn phenomenon. Third caffeine at 81 milligrams, plausible: caffeine can temporarily lower insulin sensitivity, highly individual. Fourth the protein route, open: 19 grams of protein can deliver glucose with a delay via glucagon, not proven in this single case. It remains open why this flavour produces a stronger response. What might explain the rise – an honest assessment 4.1 g of carbohydrates is little. The amount alone does not explain my response. Carbohydrate amountestablished4.1 g per the label (I noted 6 g).Too little to explain about+30 mg/dl on its own.The morning hourplausibleIn the morning, insulin action isphysiologically weaker(dawn phenomenon).Caffeine (81 mg)plausibleCaffeine can temporarily lowerinsulin sensitivity – highlyindividual.The protein routeopen19 g of protein can deliver glucosewith a delay via glucagon –not proven in my case. It remains open why this particular flavour produces a stronger response in me than the previous one. This is a single observation, not causality.
Fig. 12: Four possible explanations shown side by side.

The morning hour (plausible). Insulin action is physiologically weaker in the morning. In the dawn phenomenon, cortisol, growth hormone and glucagon raise insulin resistance in the early hours.3 The same drink in the afternoon may therefore look quite different in me.

Caffeine (plausible). 81 mg per serving is not a side issue. Caffeine can temporarily lower insulin sensitivity and amplify the blood sugar response, especially after meals; how strongly varies a great deal between individuals.2 That fits what I observed in the Coke Zero test with caffeine.

The protein route (open). With an intact insulin response, protein barely raises blood sugar. With pronounced insulin resistance, however, amino acids can deliver glucose with a delay via glucagon and gluconeogenesis.4 Whether that plays a role in my case cannot be answered from a single test.

🔍 What I explicitly cannot say

Which of these factors it was. A single test cannot separate the morning hour, caffeine and protein from one another. That would need repetitions: the same flavour at a different time of day, and a caffeine-free comparison flavour in the same protocol. That is what comes next.

Why I get straight on the bike in the morning

Movement after eating is one of the best-documented levers there is: working muscles take glucose from the blood through GLUT-4 transporters even when insulin action is impaired.5 Just 10 to 20 minutes of walking after a meal measurably lowers the peak, and it works better after eating than before.6 For me this has become a fixed combination: the protein drink in the morning, then 45 minutes of easy riding straight afterwards. That is why all my test results are always recorded in the morning with drink plus ride – the buffer is part of the protocol.

⚠️ The thinking error I want to flag

Few carbohydrates does not automatically mean „nothing will happen“. Anyone who drinks something like this in the morning and assumes there is nothing left to do may be mistaken – in my case the curve rises anyway. Anyone taking glucose-lowering medication should agree training and timing with their doctor in any case.

My conclusion

On flavour, my all-time favourite of this series. On blood sugar, the drink that has produced the clearest response in me so far – within the target range, but visibly. Both are true at the same time, and that is exactly the point: a product can be well made and still be demanding for your own metabolism. For me that does not mean „do not drink it“, but plan for it deliberately – with unsweetened almond drink rather than milk, and with movement afterwards, knowing full well that the first 20 minutes of it will not catch anything. Next comes the comparison run without the bike, and after that the same flavour in the afternoon.

Key takeaways

  • More Nutrition Protein Iced Coffee, Dark Cookie Crumble: 25 g of powder in 300 ml of unsweetened almond drink.
  • Per serving: 158 kcal, 19 g of protein, 4.1 g of carbohydrates (1.6 g sugar), 7.0 g of fat, 81 mg of caffeine.
  • Measured: 119 (08:19) – 122 when drinking – peak 149 (08:46) – 121 (09:11) – 118 (09:24).
  • The rise of about 30 mg/dl came even though the training had been running for nearly 20 minutes.
  • Every reading stayed inside the target range of the app – a clear rise, not a spike out of range.
  • The training did not prevent the rise, but it brought it back cleanly.
  • Flavour and texture are the best of the series for me – coffee subtle, cookie pronounced.
  • What remains open is how the curve would have run without the bike. The comparison run follows.

Sources

Sources as of: 22 Jul 2026.

  1. Product label of the More Nutrition Protein Iced Coffee, Dark Cookie Crumble flavour (author's own photograph, see Fig. 6): nutrition per serving (25 g in 300 ml of unsweetened almond drink) and per 100 g of powder, plus preparation advice. Manufacturer per the label: Quality First GmbH, Elmshorn. morenutrition.de (opens in a new window)
  2. Caffeine can temporarily lower insulin sensitivity and amplify the blood sugar response, above all after meals; highly variable between individuals. beyondtype1.org (opens in a new window)
  3. Dawn phenomenon: a morning rise in blood sugar driven by cortisol, growth hormone and glucagon (raised insulin resistance), independent of food. Review. ncbi.nlm.nih.gov/PMC10457696 (opens in a new window)
  4. Franz MJ / Nuttall FQ: Dietary Protein and the Blood Glucose Concentration. Diabetes (2013); protein delivers small amounts of glucose with a delay via glucagon and hepatic gluconeogenesis. pmc.ncbi.nlm.nih.gov/PMC3636610 (opens in a new window)
  5. Physical activity, GLUT-4 and insulin sensitivity: insulin-independent glucose uptake in muscle; acute after a single session, chronic from about 8 weeks. PMC (2020). pmc.ncbi.nlm.nih.gov/PMC7235686 (opens in a new window)
  6. Reynolds/Pahra et al.: 10-20 minutes of walking after eating lowers postprandial glucose; more effective after the meal than before. PMC review (2020). ncbi.nlm.nih.gov/PMC7112182 (opens in a new window)

Medical note: A personal single-case observation (n=1) combined with general nutrition data from the product label. Not medical advice, not a product recommendation and not a paid collaboration; the product was bought by the author. Individual responses differ widely. No promise of cure.

Share

These are plain links — no tracking scripts are loaded.