NUTREX RESEARCH ISOFIT Whey Protein Isolate Powder 2lb

Nutritional Information — Nutrex Research IsoFit Whey Protein Isolate 2LB

Serving size: 1 scoop (approximately 31-35g, varies by flavour). Servings per container: 30.

Note: Nutritional values vary between flavours. The Cookies and Cream variant contains additional ingredients including cookie pieces which increase carbohydrate, calorie, and sodium content. Per-100g values are estimates calculated from per-serving label data. Client to verify all values against the specific physical product label for the Sports One-stocked batch before publishing.

Ingredients

Chocolate Shake / Vanilla Bean Ice Cream

Cross-Flow Microfiltered Instantized Whey Protein Isolate, MCT Oil Powder (Medium Chain Triglycerides from Palm Kernel and Coconut Oil, Sodium Caseinate, Silicon Dioxide, Sunflower Lecithin), Organic Agave Inulin, Natural and Artificial Flavor, Cocoa Processed with Alkali (Chocolate only), Salt, Xanthan Gum, Guar Gum, Soy and/or Sunflower Lecithin, Sucralose, Acesulfame Potassium.

Cookies and Cream

Instantized Whey Protein Isolate, Chocolate Sandwich Cookie Pieces (Unbleached Enriched Flour, Sugar, Palm and/or Canola Oil, Cocoa Processed with Alkali, High Fructose Corn Syrup, Leavening, Salt, Soy Lecithin, Chocolate, Artificial Flavor), MCT Oil Powder, Organic Agave Inulin, Natural Flavor, Salt, Xanthan Gum, Guar Gum, Sucralose, Acesulfame Potassium.

Key Ingredient Roles

Understanding why the full EAA and BCAA profile of a whey isolate matters beyond headline protein numbers helps contextualise IsoFit’s 12g EAA and 2.7g leucine content. For those planning daily intake around this formula, a reference on how much protein your body needs each day ensures each of the 30 servings is used with purpose.

Allergen Warning: Contains milk and soy. Made in a facility that also processes peanuts, sesame, tree nuts, fish, crustaceans, shellfish oils, and wheat products. The Cookies and Cream variant contains wheat. This product is a dietary supplement and is not intended as a substitute for a varied, balanced diet. Not for use by individuals under 18 years of age. Do not use if pregnant or nursing. Consult a healthcare professional before use if you have a pre-existing medical condition or are taking prescription medication.

Why Buy Nutrex Research IsoFit from Sports One

Sports One International is Pakistan’s authorised distributor of Halal-certified supplements since 2002. Every unit of Nutrex Research IsoFit Whey Protein Isolate 2LB sold through Sports One is 100% genuine, properly imported, and backed by official distributor agreements. Know how to confirm a supplement is original before purchasing anywhere, and understand why suspiciously low prices signal serious risk to your health and results. Find us in Lahore, Karachi, Islamabad, and Gujranwala or order online with fast nationwide delivery.

How to Use Nutrex Research IsoFit Whey Protein Isolate

Preparation Instructions

Mix one scoop of IsoFit with 150ml (5 oz) of cold water in a shaker cup and consume immediately following your workout. Nutrex specifically recommends 5 oz of cold water for the Chocolate Shake and Vanilla Bean Ice Cream variants, which produces a thicker, creamier shake due to the MCT Oil Powder content. For a thinner consistency, increase water to 180-240ml (6-8 oz). For a richer, higher-calorie shake, cold milk can be used and works particularly well with the Cookies and Cream variant. IsoFit may also be taken anytime during the day, between meals, to support lean muscle building and recovery. The formula dissolves completely with moderate shaking and leaves no chalky residue or powder at the bottom of the cup.

Timing Tips

• Post-workout (primary window): Consume immediately after your session. The cross-flow microfiltered isolate absorbs rapidly, delivering EAAs and BCAAs to muscle tissue within the post-exercise window when protein synthesis rates are most elevated. See why the post-workout protein window produces measurably better recovery outcomes.
• Morning: A serving first thing in the morning breaks the overnight fast and immediately activates muscle protein synthesis after the catabolic overnight period. At 110-130 calories per serving, it adds minimal caloric load to the morning routine.
• Between meals: IsoFit’s organic agave inulin content contributes to satiety alongside the 25g protein payload, making it an effective appetite management tool between main meals during a caloric deficit or cutting phase.
• In food and recipes: IsoFit mixes well into oatmeal, protein pancake batter, smoothies, and yoghurt. The MCT Oil Powder content improves the texture of baked applications compared to standard isolates that can turn rubbery when heated.

Recommended Stack

Pair IsoFit with a daily creatine supplement for strength and muscle volume that protein alone does not produce. On training days, a pre-workout supplement for focus and training intensity creates a complete session-to-recovery sequence alongside post-workout IsoFit. A BCAA product taken intra-workout provides additional coverage during the session, extending the benefit of IsoFit’s 6g of naturally occurring BCAAs into the training window itself. Understanding how BCAAs and creatine each contribute distinct and non-overlapping benefits helps structure a purposeful stack.

Storage Instructions

Store in a cool, dry place away from direct sunlight and heat. Keep the lid tightly sealed after every use to prevent moisture absorption and maintain the gourmet flavour profile. Do not refrigerate. Ideal storage temperature is below 25°C. For guidance on managing the shelf life of an opened tub, see how long whey protein isolate remains effective after opening.

Warnings

Not for use by individuals under 18 years of age. Do not use if pregnant or nursing. Contains milk and soy. The Cookies and Cream variant contains wheat. Not suitable for individuals with known allergies to milk, soy, or wheat. Made in a facility that also processes peanuts, sesame, tree nuts, fish, crustaceans, shellfish oils, and wheat. Consult a healthcare professional before use if you have a pre-existing medical condition or are taking prescription medication. Keep out of reach of children.

The Science Behind Nutrex Research IsoFit

Cross-Flow Microfiltration and Protein Purity

Cross-flow microfiltration is a cold-processing filtration method that passes the liquid whey stream across a semi-permeable membrane under pressure, separating the protein fraction from fat, lactose, and denatured proteins without using heat or chemical ion exchange. This preserves the native protein structure and bioactive fractions including immunoglobulins and lactoferrin. Research reviewed at the NIH National Library of Medicine (PMC3905294) confirmed that cold-processed whey protein retains bioactive fractions with immune and gut health functions that are lost in heat-processed alternatives, supporting the use of cross-flow microfiltration as the premium processing method for isolate production.

Whey Isolate, EAAs, and Muscle Protein Synthesis

IsoFit delivers 12g of naturally occurring EAAs including 2.7g of L-Leucine per serving. Leucine is the primary activator of the mTOR pathway, the central anabolic signalling cascade that initiates muscle protein synthesis. A landmark study published in the American Journal of Clinical Nutrition (PubMed PMID 22150425) confirmed that leucine-rich, fast-absorbing protein sources produce significantly greater post-exercise muscle protein synthesis responses than lower-leucine alternatives. IsoFit’s 2.7g of leucine per serving places it within the range consistently associated with maximal anabolic stimulation.

MCT Oil and Metabolic Function

The MCT Oil Powder in IsoFit is derived from palm kernel and coconut oil and provides medium-chain triglycerides as the formula’s fat source. Unlike long-chain dietary fats that require chylomicron transport through the lymphatic system before reaching circulation, MCTs are absorbed directly into the portal vein and transported to the liver for rapid conversion to ketones or direct energy use. A review published in the NIH National Library of Medicine (PMC4882694) confirmed that MCT consumption is associated with increased energy expenditure, improved satiety, and a more favourable body composition profile compared to equivalent doses of long-chain fatty acids, providing functional metabolic rationale for Nutrex’s choice to use MCT powder over standard vegetable oil emulsifiers.

Organic Agave Inulin and Gut Microbiome Health

Organic Agave Inulin is a soluble prebiotic dietary fibre that selectively stimulates the growth of beneficial gut bacteria including Bifidobacteria and Lactobacillus species. Research published in the British Journal of Nutrition (PubMed PMID 17152576) confirmed that inulin-type fructans produce significant increases in beneficial gut bacteria counts alongside improved markers of digestive comfort and transit. In the context of a protein supplement, the addition of a prebiotic fibre directly addresses the digestive discomfort that some users experience with high-protein products, making IsoFit a more gut-friendly option than standard isolate formulas.

Zero Amino Spiking and Label Integrity

Amino spiking is the practice of adding free-form amino acids such as taurine, glycine, or creatine to a protein formula to inflate the nitrogen-based protein reading on the label beyond the actual whey protein content. Nutrex Research explicitly formulates IsoFit without this practice, confirming that all 25g of protein per serving comes entirely from the whey protein isolate fraction. The ConsumerLab framework for protein testing covers how amino spiking inflates apparent protein content while reducing actual muscle-building amino acid delivery, reinforcing why Nutrex’s zero amino-spiking commitment is a meaningful quality differentiator in the isolate category.

Optimal Post-Exercise Protein Dose

The ISSN position on protein and exercise, published in the Journal of the International Society of Sports Nutrition, recommends 20-40g of high-quality protein per serving post-exercise to maximise the muscle protein synthesis response, with individual servings above 40g providing diminishing additional returns. IsoFit’s 25g per serving sits precisely within this evidence-backed optimal dose range, ensuring maximum anabolic stimulus without the excess that drives protein oxidation rather than muscle synthesis.

What is Nutrex Research IsoFit used for?

Nutrex Research IsoFit is a 100% cross-flow microfiltered whey protein isolate supplement designed for lean muscle growth, rapid post-workout recovery, and daily protein supplementation. It delivers 25g of pure isolate protein per serving with 12g of naturally occurring EAAs, up to 6g of BCAAs, and zero amino spiking, making it one of the most complete and transparent isolate products available. It is lactose-free, gluten-free, and free from added sugar, and is suitable for use post-workout, in the morning, or between meals.

How do I prepare Nutrex IsoFit?

Mix one scoop with 150ml (5 oz) of cold water for the thickest, most dessert-like consistency, or increase to 180-240ml (6-8 oz) for a thinner shake. Shake for 20-25 seconds in a shaker cup. The MCT Oil Powder in the formula creates a naturally creamy texture that distinguishes IsoFit from standard watery isolate products. For a richer shake, cold milk works well. Consume immediately after mixing, ideally within 30 minutes of completing your training session.

Is Nutrex IsoFit Halal?

Sports One International is Pakistan’s authorised distributor of Halal-certified, officially imported supplements since 2002. All Nutrex Research products stocked and sold through Sports One are genuine and properly imported through official distributor channels. For specific Halal certification queries, visit the authorised distributor and Halal certification page or contact Sports One directly.

Why does IsoFit contain fat if it is a pure isolate?

The fat in IsoFit (approximately 1-1.5g per serving) comes entirely from MCT Oil Powder derived from palm kernel and coconut oil — it is a deliberate and functional addition, not a contamination from incomplete filtration. Medium-chain triglycerides are absorbed and metabolised differently from standard dietary fats, going directly to the liver for energy conversion rather than being stored. In IsoFit, the MCT powder also serves as a natural creamer that gives the formula its distinctive smooth, thick texture without requiring artificial thickeners or inferior oil emulsifiers. The fat content does not compromise the isolate’s purity classification.

Is Nutrex IsoFit suitable for lactose-intolerant individuals?

Yes. Cross-flow microfiltration removes virtually all lactose from the whey protein isolate fraction, making IsoFit near-lactose-free. Additionally, the organic agave inulin prebiotic fibre supports gut health and reduces protein-associated digestive discomfort. Athletes who have experienced bloating or gas with standard whey concentrate products consistently report significantly better tolerance with IsoFit. For more context on how whey isolate addresses lactose sensitivity, the linked guide covers the relevant mechanisms in detail.

What makes IsoFit different from standard whey isolate products?

Three things separate IsoFit from commodity isolate products. First, MCT Oil Powder from coconut and palm kernel oil replaces the standard inflammatory vegetable oils used as emulsifiers in most isolates, adding functional metabolic benefits alongside its textural role. Second, Organic Agave Inulin provides a prebiotic fibre component that specifically addresses gut health and digestive comfort. Third, IsoFit’s gourmet flavour system, developed to deliver genuine dessert quality, solves the palatability problem that plagues most ultra-clean isolate products. The combination of these three elements makes IsoFit both more functional and more enjoyable than standard single-ingredient isolate products.

Can I stack Nutrex IsoFit with other supplements?

Yes. IsoFit works as the protein foundation of any complete training stack. Since it contains no stimulants, creatine, or hormonal compounds, it combines cleanly with all other supplements. The most effective additions are a daily creatine supplement for strength and muscle volume, a pre-workout for training intensity, and a BCAA product intra-workout for additional amino acid coverage. Given that IsoFit already delivers 6g of BCAAs and 12g of EAAs per serving, the intra-workout BCAA addition is most relevant for longer or twice-daily training sessions.

How long does the 2LB tub of IsoFit last?

The 2LB container provides 30 servings at one scoop per day, lasting approximately four weeks. At two servings per day, such as morning and post-workout, it lasts two weeks. The 2LB format is the practical choice for athletes trying IsoFit for the first time, travelling athletes who prefer a lighter container, or anyone maintaining a secondary protein stash. For consistent long-term use, the 5LB format at 70 servings offers significantly better cost-per-serving value.