Milk Protein Concentrate (MPC) is a versatile source of protein that is becoming increasingly popular in the supplements industry. It combines both whey protein and casein in their natural proportions, offering unique benefits compared to traditional protein powders. For private-label manufacturers, MPC offers interesting opportunities to stand out from standard whey products.
In this article, we answer the key questions about MPC: exactly what it is, how it differs from other protein sources, and when to choose it for your product formulation. We also look at the practical aspects of processing and quality requirements.
What exactly is Milk Protein Concentrate (MPC)?
Milk Protein Concentrate (MPC) is a dried milk protein produced by removing water and some of the lactose from milk via ultrafiltration. It contains both whey protein (approximately 20%) and casein (approximately 80%) in their natural proportions, as found in milk.
The MPC production process begins with fresh milk, which is filtered to remove bacteria and impurities. Ultrafiltration is then used to separate water, lactose and minerals from the proteins. The resulting product is concentrated and dried into a powder with a protein content of between 35% and 85%, depending on the required specification.
MPC is often classified according to its protein content: MPC35, MPC42, MPC70, MPC80 and so on. The higher the number, the more protein the product contains. MPC70 or MPC80 are usually used in sports nutrition due to their high protein content and good functional properties.
How does MPC differ from whey protein and casein?
MPC differs from whey protein and casein in that it contains both types of protein rather than just one. Whey protein is absorbed quickly by the body (within 1–2 hours), whilst casein is digested slowly (up to 7 hours). MPC therefore provides both rapid and sustained protein release.
In terms of the production process, whey protein is obtained as a by-product of cheese production, whereby the whey is separated from the curds. Casein, on the other hand, is produced by treating milk with acid or enzymes to cause the casein to precipitate. MPC uses a different approach by concentrating the whole milk without separating the protein structures.
The taste and texture of MPC lie somewhere between those of whey protein and casein. It has a creamier texture than whey protein, but is less thick than pure casein. This makes it appealing to consumers who want to improve the texture of traditional protein shakes without the drawbacks of slow digestion.
What are the benefits of MPC for sports nutrition products?
MPC offers a dual benefit by combining both fast and slow protein release. This results in an immediate spike in amino acid levels after consumption, followed by a sustained supply of amino acids, which is ideal for muscle building and recovery.
MPC’s creamy texture significantly improves the mouthfeel of protein shakes. Consumers find this richer and more satisfying than thin whey shakes. This characteristic makes MPC particularly suitable for meal replacements and recovery shakes that are designed to provide a feeling of fullness.
MPC naturally contains all the essential amino acids in optimal proportions. Its amino acid profile is complete and contains high concentrations of leucine, isoleucine and valine (BCAAs), which are important for muscle protein synthesis. It also contains bioactive peptides that may offer additional health benefits.
MPC also offers processing benefits for manufacturers. It dissolves well, has excellent emulsifying properties and is stable during storage. These properties make it easier to formulate high-quality products with consistent quality.
When should you choose MPC over other sources of protein?
You should choose MPC if you want to develop a product that provides both an immediate and sustained supply of protein. This is particularly valuable for all-day protein shakes, meal replacements and bedtime formulas where sustained amino acid release is desirable.
MPC is also the right choice if you want to improve the texture of your product. For brands looking to stand out with a premium mouthfeel and creamy consistency, MPC offers clear advantages over standard whey products.
For brands looking for an alternative to whey protein but still wanting to stick with milk proteins, MPC is an interesting option. It offers a different approach to pure whey without switching to plant-based alternatives. This may appeal to consumers who find whey too watery but still prefer milk proteins.
Choose MPC too if your target audience values ‘natural’ proportions. Because MPC retains the natural protein ratio of milk, you can use this as a marketing advantage for consumers who prefer less processed ingredients.
How do you incorporate MPC into private-label supplements?
Incorporating MPC into supplements requires careful consideration of solubility and flavour masking. It does not dissolve as easily as whey isolate, so you often need lecithin or other emulsifiers to improve solubility and prevent clumping.
When developing flavours, you need to take into account the natural milky taste of MPC. This can be more pronounced than with whey, which affects your flavour profile. Vanilla and chocolate usually work well because they complement the milky taste. Fruity flavours can be more challenging.
The processing temperature is important when using MPC. Excessively high temperatures can damage the protein structure and impair its functional properties. Keep the processing temperature below 60°C to maintain optimum quality.
To achieve the desired mouthfeel, you can combine MPC with other ingredients. A small amount of xanthan gum can help create a smooth, creamy texture. Do make sure you use the correct proportions to avoid the mixture becoming too thick.
What quality standards apply to MPC supplements?
MPC supplements must meet strict microbiological standards, as milk proteins can be susceptible to bacterial growth. The total plate count must be low, and pathogenic bacteria such as Salmonella and E. coli must be absent.
The protein content must comply with the specifications on the label, usually with a tolerance of ±5%. The moisture content is also important: it must be low enough (usually below 5%) to prevent microbial growth and ensure a long shelf life.
Heavy metals such as lead, cadmium and mercury must remain within the legal limits. This requires regular testing of both raw materials and finished products. Residues of pesticides and antibiotics must also be monitored.
For private-label manufacturers, the traceability of raw materials is important. You must be able to demonstrate where your MPC comes from and what quality controls have been carried out. We at MixMasters They therefore work exclusively with certified suppliers who can provide full documentation and carry out strict incoming goods checks to ensure consistent quality.
Frequently Asked Questions
How long does it take to see results from MPC supplements compared to ordinary whey?
MPC provides both immediate and sustained-release protein, so you’ll experience a rapid spike in amino acids (from the whey component) within 1–2 hours, followed by 6–7 hours of sustained release (from the casein component). This means you may experience better recovery and muscle growth, especially if you take MPC before bed or use it as a snack.
Can I use MPC if I’m lactose intolerant?
MPC still contains lactose, although less than ordinary milk due to the production process. This may still cause problems for people with lactose intolerance. If you are sensitive to lactose, choose an MPC with a higher protein content (such as MPC80) as these contain less lactose, or consider adding lactase enzymes.
When is the best time to take MPC for optimal results?
Door de dubbele eiwitafgifte is MPC ideaal voor verschillende momenten: ’s avonds voor het slapen (langzame caseïne werkt de hele nacht), tussen maaltijden als langdurige eiwitbron, of na training wanneer je zowel snelle als langzame eiwitvoorziening wilt. Vermijd het direct voor intensieve training vanwege de langzamere vertering.
Why does my MPC supplement sometimes dissolve poorly, and how can I prevent this?
MPC naturally dissolves less easily than whey because of its casein content. Use lukewarm water (not hot), first mix a small amount of liquid into a paste, and then gradually add more liquid. A shaker with a mixing ball or a blender works best. Products containing added lecithin usually dissolve more easily.
Is MPC more expensive than ordinary whey, and is it worth the extra cost?
MPC is usually 20-40% more expensive than standard whey due to its more complex production process and dual functionality. The extra cost is worth it if you benefit from the sustained-release protein, improved texture, or if you find whey too watery. For basic post-workout needs, standard whey may be sufficient.
Can I combine MPC with other sources of protein in my diet?
Yes, MPC combines very well with other protein sources. You can mix it with whey for extra-fast absorption, or with plant-based proteins for a more complete amino acid profile. Do avoid combining it with large amounts of casein, however, as this can slow down digestion even more than is desirable.
What is the best way to store MPC supplements, and how long do they keep for?
Store MPC in a cool, dry place in its original packaging to protect it from moisture and light. Once opened, the product will usually keep for 12–18 months if sealed properly. Take particular care to avoid moisture, as the casein content of MPC means it may be more prone to clumping than ordinary whey when exposed to moisture.
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