The easiest to use and cheapest variant of whey protein powders is whey concentrate. To obtain the latter, the whey is first filtered (by microfiltration), then the liquid which is extracted therefrom is transformed into powder. Aromas and sweeteners are then generally added. Whey concentrate contains about 75 to 80% protein, 4 to 8% fat and about 5% sugar (lactose). Whey protein concentrate can generally cover the needs of most sports enthusiasts. You can choose Zotezo for the best deal now.
Whey protein comparison
- Protein Powder Test Winner: Whey Isolate
- Main ingredient: whey protein
- Protein content: approx. 83 – 89%
- Biological value: 104
- Optimal timing: before / after training, at breakfast
The whey isolate is only slightly different from the whey protein concentrate. Finer filtration, called ultrafiltration, filters more lipid and lactose from liquid whey. The resulting powder therefore contains practically neither fat nor lactose. Whey isolate is the choice of many athletes with lactose intolerance. But bodybuilders and fitness enthusiasts also often turn to whey isolate for its slightly higher protein content than whey concentrate. It’s even lower fat content is also a major asset in their eyes. Some products, like nu3 Performance Iso Whey, are not creamy and rather have a liquid consistency and are reminiscent of sports drinks. Go for the Best Mass gainer there.
The superior quality of whey isolate is naturally reflected in its price : some manufacturers sell it at a price significantly higher than that of whey concentrate . So it’s up to everyone to decide if these extra expenses are worth it. Because if you want to benefit from an optimal distribution of macronutrients for your training, you will certainly not miss the whey isolate.
- Main ingredient: casein
- Protein content: approx. 72– 88%
- Biological value: 77
- Optimal time of intake: at breakfast, throughout the day, in the evening
With whey protein, casein is the second type of protein obtained from milk, 100 ml of cow’s milk contains approximately 3.3 g of protein – 0.6 g of whey protein and 2.7 g of casein . There is therefore 4 times more casein than whey protein in milk. So, if you consume a product containing “milk proteins”, it is largely casein.
But in terms of properties, casein and whey have many differences. While whey has a biological value that no other protein source can match, casein only reaches a biological value of 77. Although it is not the best source of protein in terms of biological value, casein still remains in the high average.
Casein and whey also differ widely in terms of speed of absorption, whey is used very quickly by the body (about 20 minutes after consumption), while casein is used very slowly by the body. It can take up to 4 hours before the casein contained in a meal is completely converted into proteins usable by the body. This is where the Multivitamin tablets come to action.
But the slow assimilation of casein can make it score points. Since the body takes several hours to assimilate casein, it avoids the large catabolic metabolism. Thus, after a meal rich in casein, the amino acid reserves are continuously filled over several hours. It is therefore certain that our body will not draw on muscle mass to produce energy during this time.