Whey Isolate

Whey isolate is a particularly pure protein powder with a high protein content and very little lactose, fat and carbohydrates. Whether for muscle building, a calorie-conscious diet or as a quick protein source after training: here you will find high-quality whey protein isolate in creamy flavours and learn what matters when it comes to selection, nutritional values and use.

What is whey isolate?

Whey isolate, also called whey protein isolate or whey isolate powder, is a protein powder made from whey. Whey protein is a by-product of cheese making: the whey is left over during cheese production and is then processed into powder.

Production and filtration

With whey isolate, the whey protein goes through additional filtration steps, often microfiltration using the CFM process (cross-flow microfiltration), which purifies the powder to a particularly high degree. Pure whey protein isolate reaches around 90 percent protein, while fat, carbohydrates and lactose are reduced to a minimum. In finished, flavoured isolates the protein content is slightly lower depending on the flavour. This makes it one of the purest forms of whey protein. Protein contributes to an increase in muscle mass and to the maintenance of muscle mass. That is exactly why this powder is so popular with athletes who want plenty of protein with little fat and sugar. You can find more background in our whey isolate guide.

Whey protein isolate and iso whey: what is behind the names?

The terms whey protein isolate and iso whey mean the same pure whey protein. What counts is the high purity: a good isolate stands out with a high protein content, while fat and lactose are strongly reduced by the filtration. This purity makes it a popular choice whenever you want a lot of protein with few calories. As a protein powder it is easy to fit into your daily routine, for example as a shake after training or as a quick protein source in between. If you are looking for a high-quality iso whey, pay attention to a high protein content, a clean amino acid profile and good solubility.

Whey isolate, whey concentrate or whey hydrolysate: the differences

Whey protein comes in three processing stages, which differ mainly in protein content as well as fat and lactose content.

Whey concentrate is the affordable base with a protein content of around 70 to 80 percent and a higher share of fat and lactose. Whey isolate is the pure form with a particularly high protein content, little fat and low lactose. Whey hydrolysate is an additionally broken-down isolate whose protein is already partially pre-digested. If a high protein content and low lactose matter to you, the isolate is a great pick. If you are starting on a budget, go for the concentrate. You will find a detailed comparison in our article whey protein or isolate.

Protein content, nutritional values and lactose

The big advantage of whey isolate is the ratio of lots of protein to very little of everything else. One serving delivers around 24 g of protein with only very little fat and sugar. Thanks to the stronger filtration it contains considerably less lactose than a concentrate, making it low in lactose and easier to tolerate for many people with a sensitive digestion. Please note: it is low in lactose, but not completely lactose-free in every case. A look at the nutritional values of the individual product shows you the exact protein content as well as fat, carbohydrates and lactose per serving. The low carbohydrate and fat share is typical of a pure isolate.

Biological value and amino acid profile

The biological value describes how well the body can convert a dietary protein into its own protein. Whey protein ranks among the highest-quality protein sources of all. A whey isolate delivers a complete amino acid profile with all essential amino acids and a high share of BCAAs, the branched-chain amino acids leucine, isoleucine and valine. These BCAAs play an important role in the muscles. Thanks to the high bioavailability of whey protein, the amino acids are quickly available to the body, which makes the powder ideal around training. Protein contributes to an increase in muscle mass, especially in combination with regular strength training.

Who is whey isolate right for?

Whey isolate is versatile and offers clear benefits depending on your goal:

• High protein content: plenty of protein with around 24 g per serving (30 g).
• Muscle building: protein contributes to an increase in muscle mass, supported by a complete amino acid profile.
• Calorie-conscious nutrition: lots of protein with little fat and sugar.
• Good tolerability: low in lactose and therefore easier to tolerate than a concentrate for many people with lactose intolerance.
• Quickly available: ideal as a shake after training or as a protein source throughout the day.

This makes it a fit for the ambitious strength athlete as well as for anyone who wants to raise their daily protein intake without hassle.

Whey isolate for muscle building and dieting

A whey isolate is ideal if you keep a close eye on your protein intake in everyday life. For muscle building, the powder delivers high-quality protein with a high protein content that the body can use well. During a diet phase it scores with plenty of protein and little fat and sugar, so you can cover your protein needs without taking in many calories. Especially for people with lactose intolerance, the low lactose content is an advantage over a concentrate. This way it fits into almost any diet, whether you are building muscle, managing everyday nutrition or dieting. In our selection you will find products that match exactly this goal.

Preparation and dosage

Whey isolate is quick to prepare. Put one serving of powder into a shaker, add water or milk and shake briefly. With water the shake turns out lighter, with milk creamier and fuller. One serving usually equals around 30 g of powder with around 24 g of protein. The powder works well after training or as a protein source throughout the day. What matters most for muscle building is your total daily protein intake, not the exact timing.

Taste and flavours

Pure whey isolate does not have to taste neutral or watery. Our whey isolates come in creamy flavours such as vanilla, chocolate, rice pudding cinnamon or cookies, which mix well with water or milk. This way you combine a high-quality amino acid profile with a full-bodied taste. If you prefer a light, refreshing drink instead of a creamy shake, you will find the clear option in our clear whey isolate range.

Buying whey isolate powder: what to look for

When buying, it pays to compare several products. Here is what to look for:

• Protein content: as high as possible; check the figures per serving and per 100 g.
• Amino acid profile: complete, with a high BCAA share.
• Fat, sugar and lactose: as low as possible.
• Price per serving and per kilogram: helps with comparison, because a low price is not always the best choice.
• Quality: transparent nutritional values, good solubility as a shake and a clean ingredient list.
• Reviews: a look at other customers' experiences is worthwhile.

Whether you want a pure isolate powder for shakes, a flavoured whey protein isolate or a particularly low-lactose product: in our selection you will find the right isolate for every goal.

Buy whey isolate at Gigas Nutrition

With us you get high-quality whey protein isolate with transparent nutritional values and tested quality. Our bestselling isolate, the GN Dairy Whey Isolate, wins you over with its creamy consistency, CFM filtration and a very low fat share. Your advantages with us: a high protein content and a complete amino acid profile, a low lactose, fat and sugar share, creamy products in several flavours and free shipping from 75 euros. To find out which product suits you best, check our whey isolate test with the most important buying criteria.