LifeSource Vitamins Whey Protein Dual Blend Isolate & Concentrate — Optimal Muscle Support*
Your go-to protein for rapid recovery and sustained muscle support. LifeSource Vitamins Whey Protein Dual Blend combines fast-absorbing whey isolate with sustained-release whey concentrate to deliver both an immediate spike and extended stream of essential amino acids.* Each 1-scoop serving supplies ~24 g protein with ~5 g BCAAs (≈2.5 g leucine) and ~420 mg L-glutamine, supporting muscle growth, post-workout recovery, strength gains, and everyday performance.* Ideal after training or between meals for satiety and anabolic support. Crafted in FDA-registered, GMP-certified facilities and 3rd-party tested for purity, potency & label accuracy.*
Research-Driven & Verified Product.
Explore the clinical research, ingredient science, and global evidence supporting this product below.
Research Promise: At LifeSource Vitamins, our commitment is rooted in research and results. Every benefit below is supported by human clinical studies indexed in the National Institutes of Health (NIH) via PubMed, with full texts available in the National Library of Medicine (NLM) PubMed Central (PMC) when available. We also reference reviews from 39 leading health organizations and insights from 20 top global universities to ensure our guidance aligns with credible science.*
Clinically Studied Benefits (Human Evidence)
✓ Builds muscle size & strength with training* — Protein supplementation improves resistance exercise training gains; diminishing returns beyond ~1.6 g/kg/day. NIH/PubMed — Morton 2018
✓ Elevates post-exercise muscle protein synthesis in older adults* — Leucine-enriched whey increased postprandial muscle protein synthesis. NIH/PubMed — Luiking 2014
✓ Leucine dose matters* — Human data: leucine dose predicts muscle protein synthesis responses (no single threshold). PMC — Wilkinson 2023
✓ Supports exercise recovery* — RCTs show protein aids muscle-damage/inflammation & DOMS markers after exercise. NIH/PubMed — Nieman 2020
✓ Improves outcomes in sarcopenia* — Meta-analyses: whey + resistance exercise training increases strength & skeletal muscle in older adults. NIH/PubMed — Cuyul-Vásquez 2023; NIH/PubMed — Li 2024
✓ Maintains gains after detraining* — Leucine-enriched whey + resistance exercise training preserved improvements 24-weeks post-training vs training alone. NIH/PubMed — Mori 2022
✓ Rapid digestion → robust anabolic response* — Whey’s fast kinetics & high leucine content support superior acute muscle protein synthesis vs slower proteins. PMC — Breen & Phillips 2011
✓ Blood-pressure support* — Whey intake reduced systolic blood pressure in meta-analysis. NIH/PubMed — Vajdi 2023; PMC — Yang 2019
✓ Glutathione (antioxidant) support* — Human trials show whey can elevate glutathione markers. NIH/PubMed — Zavorsky 2007; NIH/PubMed — Micke 2001
✓ Facilitates recovery & adaptations* — Narrative + experimental data support post-exercise benefits. PMC — Cintineo 2018
Additional Studies Showing Promising Benefits
✓ Body-composition support* — Evidence for body weight/fat mass reductions with whey in overweight/obese. PMC — Yang 2019
✓ Clinical-context immune & inflammatory markers* — Improvements reported in select trials (context-specific). NIH/PubMed — Bumrungpert 2018
✓ Timing after exercise* — Reviews indicate whey post-workout supports recovery via increased synthesis. PMC — Kim 2017
✓ Protein type comparisons* — Trained females: whey vs casein both effective across 8 weeks (no difference in performance). PMC — Wilborn 2013
University / Academic Context
✓ Age-related anabolism* — Academic review: variables regulating anabolic resistance and role of protein quality (whey, leucine). PMC — Deane 2024
✓ Protein intake & training meta-overviews* — University-led syntheses confirm lean-mass benefits with added protein during resistance exercise training. PMC — Nunes 2022
Global Evidence & Authoritative Reviews
✓ Dietary protein & RET guidance* — Additional protein supports training-induced increases in lean mass/strength. NIH/PubMed — Morton 2018; PMC — Nunes 2022
✓ Blood pressure & lipids* — Reviews suggest whey may lower systolic blood pressure and improve select cardiometabolic markers. NIH/PubMed — Vajdi 2023
✓ MPS mechanisms* — Whey’s rapid digestion/leucine advantage vs slower proteins. PMC — Breen & Phillips 2011
We monitor research from leading institutions — Harvard, Johns Hopkins, Mayo Clinic, Cleveland Clinic, Cambridge, Oxford, Stanford, Yale, MIT, University of Florida, Oregon State University – Linus Pauling Institute, Tufts, Boston University, Cornell, Columbia, Ohio State — to align with credible science.*
Isolate vs Concentrate: Digestion & Use
Whey Isolate — typically ~90% protein with lower lactose/fat. It empties from the stomach and appears in blood amino acids rapidly, helping trigger a strong, quick rise in muscle protein synthesis—great immediately post-workout. (PMC — Breen & Phillips 2011)
• Whey Concentrate — usually ~70–80% protein and retains more native milk fractions. Slightly more lactose/fat can slow digestion a bit, extending amino acid availability—useful between meals or when you want steadier release.*
• Why a Dual Blend? The blend provides a rapid “spark” (isolate) plus a steadier “sustain” (concentrate) to cover multiple windows of recovery and satiety across the day.*
Brief Benefit Bullets
- Dual-phase protein: fast + sustained delivery*
- Supports muscle growth & post-workout recovery*
- ~5 g BCAAs (≈2.5 g leucine) per scoop*
- Includes naturally occurring/added L-glutamine (~420 mg)*
Suggested Use
Adults: Mix 1 level scoop (~42 g) with 8–10 oz cold water or milk. Use post-workout for rapid recovery or between meals for steady protein support. Contains milk.
Product Specifications
Serving Size — 1 level scoop (~42 g)
• Servings Per Container — ~22
• Protein — ~24 g per scoop (Amino profile on label; BCAAs ≈5.1 g; leucine ≈2.5 g)
• L-Glutamine — ~420 mg per scoop (naturally occurring + added)
• Protein Blend — Whey Protein Isolate + Whey Protein Concentrate
• Sweetener — Xylitol & Stevia; Contains Milk
• Quality — Third-party tested for identity, potency & purity
Perfect For
Athletes & lifters wanting fast + sustained protein support*
• Between-meal satiety and post-workout recovery*
• Adults focused on strength, body composition, and healthy aging*
Key Ingredients
Whey Protein Isolate — fast, leucine-rich protein that rapidly elevates plasma AAs to stimulate muscle protein synthesis. (PMC — Breen & Phillips 2011)
• Whey Protein Concentrate — complements isolate with a steadier amino acid release for prolonged support.*
• BCAAs (Leucine, Isoleucine, Valine) — ~5 g per scoop; leucine is a key driver of muscle protein synthesis. (PMC — Wilkinson 2023)
LifeSource Vitamins — Proudly American — Since 1992
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Always consult your physician before taking any supplements.
Dual-blend whey for fast & sustained amino delivery — Clinically Studied Ingredients — NIH/PubMed!*
