Can’t stop the urge to grab just a teeny-tiny bit of that chocolate cake? Is that creamy snack SCREAMING your name? We know being on a diet is difficult, but we are here for you.
Prozis Diet Whey + Fibre lets you take the reins of your weight, and the best part is that it's high in protein and a source of fiber while low in sugars. It aims to help you feel stronger when facing food temptation.
It is available in 4 delightful flavors, so it's not just a guilt-free snack—it's a delicious treat.
Who
is it for?
For anyone trying to control their eating habits, whether because they're on a weight-loss diet or simply because they're trying to stay fit and healthy.
What
is it for?
To help you control or lose weight. This formula is a good source of fiber and rich in protein (mainly whey protein). It is also a good source of glucomannan, which contributes to weight loss in the context of an energy-restricted diet.
Less is more.
Imagine working out to accelerate your diet's results and, later on, giving in to temptation. All the effort goes down the drain.
Weigh the pros and pros
This shake features Whey, a complete and top-quality protein that includes all amino acids. Protein promotes muscle mass growth and maintenance, playing an important role in helping you achieve your goals.
Zinc helps the immune system, therefore helping in the body's defenses. It also contributes to normal carbohydrate and macronutrient metabolism. Furthermore, it supports the maintenance of normal bones and is involved in the normal synthesis of protein.
Chromium helps process macronutrients and contributes to the maintenance of normal blood glucose levels.
Glucomannan is a powerful ally for weight loss¹
Here’s how it works:
Shake your shake
Mix one heaping scoop (20 g) with one glass of water, and shake it well.
Take the shake’s effect to the next level
To increase the effectiveness of this drink, take it with one glass of water. This shake is ideal for you to have as a morning and afternoon snack. For even better results, go for an extra dose 30 minutes before breakfast.
Glucomannan: Funny name, serious advantage
Glucomannan (Konjac fiber) in the context of an energy-restricted diet contributes to weight loss. This soluble fiber "sets up camp" in your stomach, taking away your desire to eat for a longer period.* When you're satisfied, you're more likely to say NO! No to temptation, no to cravings, and YES to yourself.
The beneficial effect is obtained with a daily intake of 3 g of glucomannan in three doses of 1 g each, together with 1–2 glasses of water, before meals and in the context of an energy-restricted diet.
*Mah E, Chen O, Liska DJ, Blumberg JB. Dietary Supplements for Weight Management: A Narrative Review of Safety and Metabolic Health Benefits. Nutrients. 2022.
Prozis Diet Whey + Fibre helps you control your eating habits, so you will not experience that yearning for food. As it contains Whey and Konjac fiber, not only will you be able to control your weight but also maintain essential muscle proteins.
DIET ON CALORIES, NOT ON BENEFITS
With Whey Protein
Low in sugars and a source of fiber
Contributes to weight reduction¹
Delightful flavor
1Glucomannan in the context of an energy-restricted diet contributes to weight loss.
Your diet's best friend!
The Diet range by Prozis is a series of safe and effective solutions to help you through your fitness journey.
Each product combines powerful ingredients! Along with regular exercise and a balanced diet, these products will get you one step closer to your goal.
Nutrition Facts
Whey + Fibre 700g - Nutrition Facts
Net weight: 700 g
Batch: I2603339
Best before end: 2027-07-31
Serving size: 3 level scoop(s)(20 g)
Servings per container: 35
% RI (*)
Energy
73.82 kcal = 309 kJ
4%
Fat
0.58 g
1%
Saturates
0.36 g
2%
Carbohydrate
8 g
3%
Sugars
0.80 g
1%
Fibre
1.10 g
**
Protein
8.60 g
17%
Salt
0.06 g
1%
Glucomannan (konjac mannan)
1 g
-
White Kidney Bean (Phaseolus vulgaris) (seed)
100 mg
-
Glycine
1.40 g
-
Caffeine
20 mg
-
Zinc
1.84 mg
18%
Chromium
9.60 µg
24%
* Reference intake of an average adult (8400 kJ/ 2000 kcal). ** Reference intake not established.
Recommended Daily Portion: Take 1 serving before breakfast, 1 mid-morning and 1 mid-afternoon. To prepare 1 serving, add 3 level scoops (20g) to 200mL of water. Due to the rapid thickening action of Konjac fibre, drink immediately after preparation to avoid clumping.
Food supplement. With sweetener. Warnings: For adult use only. Contains caffeine (60 mg/daily serving) Not recommended for pregnant or breastfeeding women. The beneficial effect is obtained with a daily intake of 3 g of glucomannan in three doses of 1 g each, together with 1-2 glasses of water, before meals and in the context of an energy-restricted diet. It should be used in the context of a suitable hypocaloric diet, a healthy lifestyle and a good level of exercise. Please consult a healthcare professional if the product is taken for more than three weeks. This product poses a choking hazard for people with difficulty swallowing or when ingested with insufficient fluids. Drink plenty of water to ensure it reaches the stomach. Do not take before bedtime. Avoid taking it along with medication and other fibre-based food supplements. Diabetics should consult their physician before using this product. Do not exceed the recommended daily portion. This product should not replace a varied and balanced diet and a healthy lifestyle. Keep out of reach of children. Store tightly sealed in the original packaging in a cool, dry place, avoiding direct sunlight.
Overall reviews
Overall reviews
4.58/5
1092 reviews
5
4
3
2
1
Flavor
4.8
Texture
4.7
Appearance
4.8
Dissolution
4.7
Customer reviews
Sara R.
2026-08-04
Flavor
5
Texture
5
Appearance
5
Dissolution
5
Rich and filling!
I've been taking it in the morning for a few weeks now, and I've definitely noticed I feel much fuller! I mix it with my morning coffee, and I can easily stay full until lunchtime (around 3-4 pm in the summer). It tastes great, even mixed with coffee. The texture is fine; it doesn't clump, hot or cold. But keep in mind that glucomannan thickens when mixed with water, so depending on the amount of water, your shake will be thicker or thinner. In short, I highly recommend it if you want to feel full to lose weight or simply control those cravings between meals!
Stefania G.
2026-07-02
Flavor
5
Texture
5
Appearance
5
Dissolution
5
Good product
It has a delicate flavor, melts quickly, and doesn't form lumps. It helps me satisfy my mid-morning and afternoon sweet cravings. As for the weight loss results, I'll only be able to see them after I finish the first pack.
Lucia A.
2026-04-16
Flavor
5
Texture
4
Appearance
5
Dissolution
5
Amazing
Delicious chocolate flavor, low in sugar. Convenient and versatile, it melts perfectly.
Emanuela B.
2025-05-06
Flavor
4
Texture
4
Appearance
5
Dissolution
3
Whey + Fiber
Tastes like hazelnut, not too sweet, immediate product yield, I recommend it!
Ana M.
2025-05-06
Flavor
5
Texture
4
Appearance
5
Dissolution
4
Good product
The easiest way to get protein and fiber. Delicious chocolate flavor and low in sugar. Tasty with milk. Very filling.
Aurelie M.
2025-04-28
Flavor
5
Texture
5
Appearance
5
Dissolution
5
Delicious !
I mix one dose with water and it's perfect: the chocolate hazelnut taste and the texture, whey very pleasant to drink!
Sylviane G.
2025-03-25
Flavor
4
Texture
4
Appearance
4
Dissolution
4
I like it very much
I use it in overnight oats and it pleasantly flavors the preparation: I tasted two flavors, vanilla and chocolate/hazelnut, and I will buy it again.
Noelle F.
2026-08-04
Flavor
5
Texture
5
Appearance
5
Dissolution
5
I love it
Really nice. Great for lots of recipes. Will buy again
Jennifer B.
2026-10-21
Flavor
5
Texture
5
Appearance
5
Dissolution
5
Whey
It mixes quickly, I enjoyed the hazelnut flavor.
Luisa S.
2026-10-08
Flavor
5
Texture
4
Appearance
4
Dissolution
3
Whey + Fiber 700g
Good product, I mix it with plant-based milk and it becomes similar to a chocolate milkshake.
Overall reviews