The Casein Knowledge Library: Evidence, Decoded

Long-form editorial guides built from peer-reviewed research, lab testing, and decades of sports nutrition practice. No bro-science, no marketing fluff — just the data on casein protein, micellar vs. hydrolyzed, timing, dosing, and how casein stacks against whey and plant proteins.

42 In-Depth Guides 180+ Citations Peer-Reviewed Sources Updated Weekly

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This Week's Deep Dive

Casein Types

Micellar vs. Hydrolyzed vs. Calcium Caseinate: Which Form Actually Performs?

Three casein molecules walk into a shaker. One clots like pudding in your stomach, one digests in twenty minutes, and one does something in between. We break down the kinetics, the amino acid profiles, the price-per-gram of leucine, and the real-world hypertrophy data from nine head-to-head studies. Plus a buyer decision tree that respects your goals — and your budget.

22 minread time

9 studiescompared

3 formsanalyzed

4.8 / 5reader rating

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Recent Long-Form Guides

Every guide is written by our editorial team, fact-checked against primary sources, and updated when new evidence shifts the consensus.

Timing

The 30-Gram-Before-Bed Protocol: Does the Casein Sleep Window Still Hold Up in 2025?

A 2024 meta-analysis of fourteen nighttime dosing trials suggests the anabolic advantage is real — but smaller than the original 2012 study claimed. Here's what changed and how to time your scoop.

14 min · Dr. Mara Voss Read →

Dosing

How Much Casein Per Day? A Lean Mass-Optimized Dosing Calculator

Most lifters overshoot. We walk through the leucine threshold model, total daily protein distribution, and a simple bodyweight-based framework that scales from a 60 kg climber to a 130 kg strongman.

11 min · Editorial Team Read →

Comparison

Casein vs. Whey: When the Slow Protein Beats the Fast One (and When It Doesn't)

It's not casein-versus-whey. It's casein-AND-whey. But context matters: between meals, around training, and during long fasts each protein earns its slot. A practical decision guide with meal-plan examples.

16 min · Coach Eli Renz Read →

Plant Proteins

Casein vs. Plant Protein: Can Blends Close the Amino Gap for Vegan Lifters?

Pea + rice gets you close. Add leucine-fortified hemp and you're nearly there. But what about muscle-protein synthesis rates? We compare the gold-standard casein data to the latest plant blend trials.

19 min · Dr. Hana Okafor Read →

Digestion

The "Casein Bloat" Myth: Why Micellar Casein Doesn't Actually Slow Your Gut

New gastrointestinal transit data refutes the old clumping-in-your-stomach narrative. We look at ultrasound imaging, gastric emptying rates, and what casein actually does to satiety hormones versus whey.

9 min · Sara Mendel, RD Read →

Quality

Reading the Label: How to Spot a Real 80% Casein Concentrate (and Avoid Label Wash)

"Premium casein matrix" sounds great. So does "slow-release protein blend." Neither tells you how much actual casein is in the tub. We decode ingredient lists, protein percentages, and the cheap filler industry's favorite tricks.

12 min · Lab Team Read →

Our Editorial Method

How a 100casein Guide Gets Built

Every article passes through the same four-stage process before it earns a place in the library. No exceptions, no shortcuts, no sponsored content disguised as science.

Source the Primary Literature

We pull from PubMed-indexed RCTs, position stands from ISSN and ACSM, and never from supplement-funded press releases.

Cross-Verify with a Practitioner

A registered dietitian or sports medicine PhD reviews every claim. If a number can't survive expert review, it doesn't run.

Test It in a Real Kitchen

Where it matters — taste, mixability, recipe use — we run hands-on trials with athletes from powerlifting to marathon prep.

Schedule Re-Reviews

Every guide has a "last reviewed" date and a queued re-audit when new meta-analyses or position stands drop in our field.

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Browse Guides by Topic

Drill down by the part of casein science you actually need tonight — whether you're dialing in a protocol or just curious about the molecule.

Casein Types12 guides Timing & Protocols9 guides Dosing Math7 guides Comparisons8 guides Digestion & Satiety5 guides Quality & Labeling6 guides

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