Whey Protein Isolate

Whey protein isolate is a concentrated form of protein available in the market. It is more concentrated than the other form of whey protein- whey concentrate. Whey protein isolate is a pure protein because it contains all nine essential amino acids required by the body.


One can get  90% protein from whey protein isolate as it is formed by further processing whey protein concentrate, to remove extra lactose, carbohydrate, and fat. Whey protein isolate is easily digested and absorbed by the body, making it suitable for all athletes. Whey isolate helps build muscle, provides satiety, helps in weight loss, and boosts immunity.  

Whey protein isolate is easily digested and absorbed by the body, making it suitable for all athletes. 


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4 products

Warmax Protein
Warmax Protein
Starts from ₹460
Rating: 4.94 out of 5 (282)
Exclusive formulation which provides 32 grams of ultra-fast-release proteins from one serving of 40 g which expedites muscle recovery.
Ultra Fast Release ProteinMade for Strength AthletesDigestive EnzymeArginineL-CarnitineVitamin C from Rose Hip Extract
Save up to ₹3,600
Incredible Isolate
Starts from ₹330
Rating: 4.91 out of 5 (385)
Each serving (30 grams) of Incredible Isolate contains 25 grams of Whey Protein Isolate which promotes muscle growth ,strength and immunity.
Fast Release ProteinQuick Absorption DigestionChocolate and Mango FlavoursGlutamic AcidInstant Muscle RecoveryRich in Antioxidants
Save up to ₹3,600
Starts from ₹240
Rating: 4.899676375 out of 5 (309)
Each sachet (30 grams) serving of HerbFast provides 19.98 grams of fast-release whey proteins.

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Improved Digestive HealthWeight ManagementEnhances ImmunityPromotes Muscle RecoveryFast Release ProteinRich in Antioxidants
Sold Out Save up to ₹3,600
Herbal Whey Protein
HerbFast Protein
Starts from ₹260
Rating: 4.51 out of 5 (138)
Each sachet (35 grams) serving of HerbFast Protein provides 23.3 grams of fast-release whey proteins.
Fast-Releasing ProteinAids Weight ManagementEnhances ImmunityPromotes Muscle RecoveryRich In AntioxidantImproves Digestive Health
Save up to ₹3,600

Whey Isolate Benefits:

Isolate whey protein benefits range from muscle synthesis to weight management. Read on to know more.

Builds Muscle:

Whey protein isolate is the best option for building muscles as it contains a high amount of proteins and low amounts of carbohydrates and fats. Whey protein isolate is naturally rich in BCAAs (leucine, isoleucine, valine). Consuming it, rapidly increases amino acids in the bloodstream, which helps build lean muscle mass and reduces exercise-induced fatigue. 

Excellent Source of Protein:

Whey is formed by curdling milk. The liquid portion is referred to as whey, a fast-releasing protein, whereas the leftover solid part is casein, a slow-digesting protein. Among all the whey proteins, whey protein isolate gives 90% protein, which helps individuals meet their daily protein needs and helps athletes in post-workout recovery, building lean muscle mass, and much more. Whey protein is a high-quality protein as it contains all essential amino acids, including BCAAs, making it a highly absorbable and quickly digested protein than other proteins. 

Lowers Cholesterol:

High cholesterol is linked with cardiovascular diseases- whey protein isolate helps reduce bad cholesterol. Recent studies have shown consuming whey protein helps raise “good cholesterol” or high-density lipoprotein as it contains lactoferrin, which may help block low density lipoprotein (LDL) or “bad cholesterol” from oxidising.

Helps Muscles Recover:

Whey protein isolate is the purest form of whey. It contains a good amount of protein that helps repair damaged tissues and muscles. Whey protein isolate contains BCAAs (Branched-chain amino acids), specifically leucine, known as the king of amino acids and is absorbed directly into the bloodstream. Leucine regulates anabolism in muscles. 

Aids in weight loss:

Protein has the quality of providing satiety for  longer, preventing hunger pangs. Individuals who want to reduce weight may consume a high-protein diet and include whey protein isolate as it suppresses cravings, boosts metabolism, and maintains muscle mass.

Boosts Immunity:

Whey protein isolate helps boost immunity by improving antioxidant levels. Glutathione is a powerful antioxidant produced by the body. Its production depends on cysteine, an amino acid provided by whey protein isolate. So, whey protein isolate enhances antioxidant levels, reducing oxidative stress and lowering the risk of many chronic disorders. 

What is the Composition of Whey Protein Isolate?

Whey protein isolate is a pure form of milk-based protein- the majority of the lactose, fat, and other non-protein elements included in whey are filtered out carefully. The resulting whey protein isolate is abundant in crucial amino acids, making it an attractive choice among people looking to fulfil their protein requirements, including athletes and fitness fanatics. It has a weight percentage of 90–95% protein and very little fat and carbohydrate. Because of its quick absorption, whey protein isolate is a great option for post-workout recovery and muscle protein synthesis. Additionally, it frequently has less lactose than other dairy products, making it easier for people who are lactose sensitive to consume.

Why is Steadfast Nutrition’s Whey Protein Isolate the Best?

Steadfast Nutrition’s whey isolate, Incredible Isolate, provides 25 grams of whey isolate and 110 grams of calories in a 30-gram serving. Whey Isolate helps in muscle synthesis and recovery, improving exercise performance. Incredible Isolate is the best whey protein isolate because it contains taurine as a special component. Taurine is a strong antioxidant that converts cytotoxic substances into stable ones and stabilises them. Our body uses up enough oxygen during vigorous exercise, and as a result, free radicals are released, which kill healthy cells. In addition to scavenging these free radicals, it reduces oxidative stress. Taurine in Incredible Isolate benefits athletes and active individuals by decreasing the time it takes to feel exhausted. It alters how carbohydrates are broken down, encourages glycogen production, increases insulin sensitivity, and reduces insulin resistance. The advantages of taurine include enhanced muscular contraction, higher levels of amino acids in the muscles, and assistance with rapid recovery.

Precautions while Consuming Whey Isolate Protein Powder:

There are a few concerns you should take into consideration when taking whey protein isolate. To make sure it is safe for you to take, it is first advised to speak with a healthcare expert, especially if you have any underlying medical conditions or are on medication. Whey protein isolate is derived from milk. Hence, people with allergies or sensitivities to dairy products should be cautious while consuming it. It is also important to adhere to the advised dosage and not go beyond the prescribed daily consumption established by the manufacturer. Stay hydrated because eating more protein could necessitate drinking more water. Last but not least, for best effects, whey protein isolate supplementation should be paired with a healthy diet and frequent exercise.

Points to Consider While Choosing the Best Whey Protein Isolate:

Numerous aspects should be taken into account while choosing the best Indian whey protein isolate: 

- Choose a brand that is well-known and dependable and that engages in excellent manufacturing procedures and independent testing for safety and purity. 

- Choose a product that has undergone cold filtration or microfiltration procedures as these techniques help maintain the integrity of the protein. 

- Aim for a high protein percentage per gram while examining the protein content per serving.

- Ensure that any additional components and flavourings fit into your dietary habits and objectives before considering them. Take care of your physical activity. 

- Last but not least, make an educated choice that satisfies your demands and tastes by considering cost, flavour, and customer feedback.       

Why buy Whey Protein Isolate at Steadfast Nutrition?

What makes Steadfast Nutrition’s Whey Protein Isolate the best whey isolate protein powder is the fact that it provides 90% fast-releasing protein for rapid muscle  recovery after an intense workout session. Incredible Isolate, Steadfast Nutrition’s whey protein isolate is of superior quality and is certified by GMP, ISO, and FSSAI. It’s organ-friendly and free from heavy metals such as mercury, copper, lead, arsenic, tin, and cadmium. The whey protein isolate is also free from harmful steroids banned by the National anti-doping agency. For authentication, one can check the lab reports of whey isolate given on the official website of Steadfast Nutrition. 

How to Use Whey Protein Isolate?

Whey protein isolate is recommended to be consumed after a workout for efficient and faster muscle recovery. Take 100 ml water in a shaker and empty the contents of one sachet (30 grams) of whey isolate from Steadfast Nutrition (Incredible Isolate) into it. Shake the mixture well. Top up with 100 ml water. Once again shake it well. An adult with an active lifestyle can consume 1-2 servings daily, depending on the duration and intensity of the workout. 

Where to Buy Whey Protein Isolate?

Steadfast whey isolate protein powder is the best Indian whey protein isolate which can be ordered from its official site- steadfastnutrition.in 

You can also buy our best whey protein isolate on Amazon and Flipkart at an amazing price. 

To know more about isolate whey protein price and its composition, you can visit steadfastnutrition.in


Q1. What is the difference between whey protein isolate and whey protein concentrate?

Ans: Whey protein isolate and whey protein concentrate are different mainly because of the processing they undergo during production. The nutritional difference between both is that whey protein concentrate has a lesser amount of protein i.e 80%, with more lactose, fats, and carbohydrates than whey protein isolate, which has 90% protein and the rest is little amounts of carbohydrates, lactose, and fats. In terms of digestibility, whey protein isolate is more quickly digested than whey protein concentrate. Whey protein concentrate is less expensive than whey protein isolate.

Q2. What is the difference between whey protein isolate and whey protein hydrolysate?

Ans: Whey protein hydrolysate undergoes hydrolysis, which makes this protein more easy to digest and absorb than whey protein isolate. Whey protein hydrolysate increases amino acid availability and absorption which further stimulates muscle protein synthesis more effectively than whey protein concentrate. Whey protein hydrolysate makes individuals less prone to allergy than whey protein concentrate. Whey hydrolysate is more expensive than whey isolate. 

Q3. What is a good time to take whey protein isolate?

Ans: The best time to consume whey protein isolate depends mainly on your health and fitness goals. According to the International Society of Sports Nutrition, protein consumption any time up to two hours after a workout is perfect for building muscle mass. The time from about 30 minutes to two hours after a workout is known as the ‘anabolic window’, the period when muscle protein synthesis is at its peak, which helps recover lost muscles, helps build muscles, and reduces inflammation. Consumption of whey isolate and carbohydrates before a workout will help your muscles activate and adapt to the training and help reduce muscle breakdown and soreness. 

Q4. What are the functions of isolate whey protein?

Ans: Whey protein isolate is the purest form of isolate protein powder with all essential amino acids. Whey isolate benefits are many- it helps boost muscle protein synthesis, improves growth of lean muscle mass, supports muscle recovery, may help reduce inflammation, provides a feeling of fullness, and may help moderate blood sugar levels.

Q5. Is whey protein isolate helpful in losing weight?

Ans: Yes, one can take whey protein isolate for weight loss as it has 90% protein and low amount of carbohydrates, lactose, and fats. Proteins help lose weight by boosting metabolism, increasing fullness and reducing appetite.Protein helps curb your appetite by reducing levels of the hunger hormone ghrelin.

Q6. How many calories does one sachet of whey protein isolate contain?

Ans: Various brands of whey protein isolate are available in the market with different serving sizes. The calories depend on the serving size of the whey protein isolate. For instance, the serving size of one sachet of Steadfast Nutrition’s Incredible isolate protein powder is 30 gm, which contains 110 calories.

Q7. Where to buy whey protein isolate?

Ans: Whey protein isolate is easily available in market. One can buy isolate protein on online platforms and E-Commerce websites such as Amazon, Flipkart, etc. Isolate protein price differs as per the composition of whey protein isolate. The other best option for buying the best whey protein isolate powder is from steadfastnutrition.in.

Q8. Can I take whey protein isolate without exercise?

Ans: Yes, anybody can consume whey isolate protein with or without exercise to maintain energy levels and fulfil protein requirements. 

Q9. Which is the right whey protein one can choose?

Ans: The selection of protein depends on your fitness goal. Everyone has different requirements according to their body type, workout schedule, and diet pattern. For example, if one is preparing for competition and doing intense workouts, the protein requirement would be 1.0-1.2gm/kg/day; if someone is a sedentary worker, the protein requirement would be 0.8gm/kg/day. So before choosing your best isolate protein, you should check the type of whey protein and the amount of protein in that particular supplement.

While choosing isolate protein powder, keep in mind that whey protein isolate has higher protein content with lesser carbohydrates, lactose, and fat than whey protein concentrate. Whey protein isolate digests more quickly than whey protein concentrate. Whey protein isolate is more expensive than whey protein concentrate.

Q10. How much whey protein isolate can I take daily?

Ans: The daily requirement of protein as per the RDA 2020 (NIN, ICMR) is 0.83g/kg/day for adults. So one can calculate the requirement of protein and accordingly opt for whey protein isolate as per their requirements, body type, workout schedule, and diet pattern. One can consume the best isolate protein powder any time of the day, but for bodybuilders or gym goers, the best time is after a workout to enhance muscle recovery and synthesis of muscles.