Whey Protein Isolate

Whey Protein Isolate

If you’re familiar with sports nutrition and natural health supplements, you’ve likely heard of whey protein – the gold standard of protein powders. However, did you know that whey protein is more than just an ingredient? Indeed, whey protein, a mixture of proteins isolated from whey consisting of α-lactalbumin, β-lactoglobulin, serum albumin and immunoglobulins, is a category in and of itself.

When shopping for whey protein, you'll come across three main types, including:

• Whey protein concentrate
• Whey protein isolate
• Whey protein hydrolysate

The sweet liquid that remains after the removal of casein from cow's milk during the cheese-making process is what yields whey concentrate. Its protein content can vary greatly – anywhere from 40 to 90%, and typically has a low fat and cholesterol content but is higher in carbohydrates which come in the form of lactose. In contrast, this form is a purer form of whey and contains more protein and less fat and lactose than concentrate. Whey isolate contains about 90% protein by weight, which explains why it is typically more expensive than other forms of this protein. Thanks to its unique composition, whey isolate is considered the leanest protein and is ideal for those looking to boost muscle protein synthesis.

Benefits of Whey Protein Isolate

• Better Recovery & Performance
• High Protein Concentration
• Optimized Absorption
• Supports Anabolic & Anti-Catabolic Processes
• Stimulates Lean Muscle growth

Why Choose Whey Protein Isolate

Because whey protein isolate undergoes a more rigorous filtration process than the concentrate variety, the bulk of the carb, fat, and lactose content is removed, making it an attractive option for those on a low-fat or low-carb diet, as well as for those who are lactose intolerant, or anyone on a vegan diet. Most notably, however, whey isolate is the ideal choice for individuals looking to improve their workout performance and help them build lean muscle mass fast — without unnecessarily adding fat or carbs. 

Whey Protein Isolate Supplements

This form of whey features prominently among sports nutrition brands. It can be purchased in powder form, in all sorts of flavours from the traditional vanilla, chocolate, and peanut butter, to more inventive flavour profiles such as coffee ice cream, lemon meringue pie, cinnamon sugar donut, blueberry muffin, and many, many more. Most whey protein isolate formulas supply between 20 to 30g of protein per serving, but this can vary greatly. It's also worth noting that many whey supplements on the market contain a combination of whey concentrate, isolate, and/or hydrolysate, so always read labels carefully, to know what you're getting.

Final Thoughts

Some people have difficulty digesting whey protein, while others may be sensitive to any remaining lactose or casein in the product. In addition, those with a sensitive stomach may experience stomach bloating, gas, and cramping when taking whey isolate. Should these symptoms occur, it may be best to switch to another source of protein.

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