- High-quality whey protein isolate from European cow's milk
- Complete amino acid profile, including all essential amino acids (EAAs) and branched-chain amino acids (BCAAs)
- High protein content of 75% and high biological value of the protein
- Gentle production through filtration process
- No artificial flavours, added sugar or sweeteners
- Suitable for vegetarians
New
ISO-C® Protein Isolate
Natural Cacao
Price per serving: £2.00
Servings: 20
Iso-C® Whey Protein Powder made from whey protein isolate with a mild milk taste and 75% protein, rounded off with criollo cacao. Full amino acid profile containing all essential amino acids. No added sugar or sweeteners. 600g powder
- Whey protein isolate with a high protein content of 75%
- Only 2 ingredients: milk protein isolate and criollo cacao
- Complete amino acid profile including all EAAs and BCAAs
- Includes a practical 30g measuring scoop for easy dosing
- Mild flavour nuances of milk and chocolatey cacao
- Free from silicon dioxide, added sugar, sweeteners and artificial flavours
- Ideal for athletes, active individuals and those with increased protein requirements
£39.90
Premium Bioactive Ingredients
How are we different?
Our Iso-C® Whey Protein Powder consists of whey protein isolate produced via a gentle filtration process from European cow's milk. It provides a complete amino acid profile with all essential and branched-chain amino acids (EAAs & BCAAs).
Our unsweetened Natural Whey Protein Isolate Cacao boasts a natural, milky flavour, which is perfectly complemented by the addition of chocolatey criollo cacao. We place particular emphasis on ensuring all our protein powders are produced without silicon dioxide, artificial flavours, artificial sweeteners, or added sugar. This purity and omission of unnecessary additives sets our premium products apart from standard market alternatives.
We use particularly high-quality, airtight flavour protection bags with zippers for packaging. These offer a high level of protection against moisture and external influences.
Our commitment to uncompromising quality & purity:
- Premium active ingredients as pure isolates & directly sourced from leading global producers
- All formulations crafted exclusively from selected individual raw materials
- Our commitment: zero unnecessary additives, technical excipients or chemical extraction agents
- Voluntary declaration of all non-mandatory ingredients
- Where additives are necessary, preference is given to valuable natural ingredients
- Capsule shells entirely free from carrageenan & PEG
- Systematic quality testing conducted by independent laboratories
- Packaged in amber glass or premium aroma-protective zipper bags designed to protect against oxidation & contaminants
- All products entirely free from magnesium stearate, nanoparticles (without legal exceptions), GMOs, artificial colours & flavours, titanium dioxide
- Added sugar & sweeteners: used only where required for functional or product-specific reasons
Protein
Whey protein is derived from whey and is further categorised into whey protein concentrate, isolate, hydrolysate and clear whey protein isolate (clear whey) according to the respective production method. All whey proteins are characterised by a very high protein content and high biological value due to their complete amino acid profile, including all essential (EAAs) and branched-chain amino acids (BCAAs). The biological value indicates how well a dietary protein can be converted into the body's own protein.
Whey protein concentrate naturally has a higher fat and lactose (carbohydrate) content than whey protein isolate.
According to the European Food Safety Authority (EFSA):
Proteins contribute to
- An increase in muscle mass
- The maintenance of muscle mass
- The maintenance of normal bones
Dosage
Directions
Mix 30g powder (1 scoop) with 200–300ml cold water or milk in a shaker.
Daily Requirements
The DGE (German Nutrition Society) recommends the following protein intake:
- Adults: 0.8g protein per kg body weight per day
- Over 65 years: 1.0g protein per kg body weight per day
- Pregnant and breastfeeding individuals: 0.9–1.2g protein per kg body weight per day
- Athletes (over 5 hours of training per week): 1.2–2.0g protein per kg body weight per day
Contents
Ingredients: Whey Protein Isolate (Milk), Fat-Reduced Cocoa Powder 13%.
Contains naturally occurring sugars.
| Average Nutritional Values per 100g Powder | Per Serving (30g Powder) | |
| Energy | 1664kJ / 394kcal | 499kJ / 118kcal |
| Fat | 8.4g | 2.5g |
| of which saturates | 5.1g | 0.5g |
| Carbohydrate | 3.9g | 1.2g |
| of which sugars | 2.7g | 0.8g |
| Fibre | 1.6g | < 0.5g |
| Protein | 75g | 22g |
| Salt | 0.44g | 0.13g |
| Amino Acid Profile Essential Amino Acids | ||
| Isoleucine | 6.0g | 1.8g |
| Leucine | 9.9g | 3.0g |
| Lysine | 9.0g | 2.7g |
| Methionine | 2.2g | 0.6g |
| Phenylalanine | 2.9g | 0.9g |
| Threonine | 6.4g | 1.9g |
| Tryptophan | 1.7g | 0.5g |
| Valine | 5.4g | 1.6g |
| Non-Essential Amino Acids | ||
| Histidine | 1.7g | 0.5g |
| Alanine | 4.7g | 1.4g |
| Arginine | 2.0g | 0.6g |
| Aspartic Acid | 9.8g | 2.9g |
| Cysteine | 2.2g | 0.7g |
| Glutamic Acid | 16.9g | 5.1g |
| Glycine | 1.5g | 0.5g |
| Proline | 5.9g | 1.8g |
| Serine | 4.6g | 1.4g |
| Tyrosine | 2.9g | 0.9g |
soya free
True Clean Label
vegetarian
gluten free
high-quality manufacturing
non-GMO
Product Details
Our in-house production guarantees uncompromising purity and quality. Production, bottling and encapsulation take place in the EU according to our own rigorous specifications and in strict compliance with HACCP, GMP and ISO 22000:2018 standards.
Bespoke liquid formulations, (functional) foods for athletic and daily performance and select exclusive items are produced as high-grade custom preparations by chosen partners who share our commitment to quality, adhering strictly to HACCP, GMP and ISO standards.
In line with our True Clean Label philosophy, we refrain from using artificial additives, colourants and preservatives intended to standardise product appearance. Consequently, formulations containing natural botanical extracts and plant-based raw materials may display subtle batch-to-batch colour variations. These variations stem from natural factors such as harvest timing (seasonal differences between early and late harvests), origin (geographical soil and climate fluctuations) or processing dynamics (variations in particle grind size). Such natural shade shifts may also occur in our plant-based or compressed tablets formulated with premium acacia fibre or nanoparticle-free cellulose and do not constitute a defect in quality.
Sunday Natural
Our philosophy
For thousands of years, cultures all over the world have been using a variety of plants and nutritious foods to naturally foster vitality and good health.
With our products, we try to emulate this ancient wisdom as much as possible.
Consequently, our philosophy is simple: we strive to meet the highest standards of quality and purity in every product we produce, with a focus on organic and natural ingredients.
We follow this philosophy with meticulous care on all levels, down to every last detail.