Whey Protein Isolate (WPI) is a better form of whey protein. It’s basically whey that’s been further refined to remove virtually all of the lactose and fat.
That leaves a product which is ultra-high in protein with a superior Branched Chain Amino Acid (BCAA) profile. It has more protein and BCAAs than regular whey.
This product is a great value Whey Protein Isolate (WPI). It’s cheaper than the New Zealand WPI and the main difference is that it’s from Ireland instead of NZ, making it cheaper to buy.
WPI has a strong amino acid profile making it a concentrated protein powder for muscle development. It’s easy to digest and absorbs rapidly, making amino acids readily available to be utilised by muscles. It’s these key attributes that make WPI one of the most beneficial forms of dietary protein.
It has a pleasant, clean taste and is popular with athletes and those counting their macro-nutrients. It’s also generally suitable for those with lactose intolerance.
WPI is especially beneficial when taken post-exercise. due to its rapid digestion and nutritional profile.
This is because WPI has virtually no fat to slow digestion so it’s digested rapidly and easily.
The texture of WPI is more watery than in regular whey or in other protein powders such as pea. This may mean that it’s not as filling as some other types. No fillers or thickeners are added to NZProtein’s protein powders to modify this texture, as they tend to dilute the protein content and can slow digestion.
WPI is a powerful muscle builder because it has all 21 amino acids needed for growth and repair. Each serving (unflavoured) contains nearly 29 grams of protein and over 7 grams of BCAAs.
WPI has higher levels of leucine than other protein powders. In fact, WPI has more than 30% more leucine than WPC. Studies of leucine have shown it to be the most anabolic (growth promoting) amino acid for muscle growth and recovery. Leucine also contributes to the regular of blood sugar levels, growth hormone production and wound healing.
WPI may assist athletes to benefit from increased lean muscle mass, reduced muscle atrophy during exercise, improved muscle repair and recovery (hyperatrophy), and an increased metabolic rate.
Whey is composed of several bioactive fractions including glycomacropeptide, -lactoglobulin, -lactalbumin and lactoferrin. These have health benefits against cancer, infection and inflammation.
WPI is high in cysteine and studies have shown that WPI can increase glutathione synthesis to improve antioxidant defence. Glutathione is a natural antioxidant that the body produces from several other amino acids – especially cysteine.
Each sachet contains one serving (31.25g). Mix entire sachet with ~200-250ml of chilled water or milk depending on desired taste. Use a blender or hand shaker. Due to the nature of this product, it mixes best in a hand shaker without using an actuator or mixing ball.
Serving size: 31.25g (2 heaped scoops)
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Ingredients:Whey Protein Isolate (contains Soy Lecithin), Flavour, Sweetener (Sucralose).
Contains: milk and soy (lecithin) ingredients
Please note that this product is processed in a facility that also handles egg, soy, peanut, and gluten ingredients.
Typical Amino Acid Profile
(mg per serving – Gourmet Vanilla flavour shown)
Branched chain aminio acids:
Other essential aminio acids:
Non essential aminio acids: