Loading...
Rule 1

Casein Protein

Protein
🏆
Servings
Source
$35.99
Builds Lean Muscle
Supports Recovery
No Fillers
Third-Party Tested

Choose your quantity

Choose your quantity
Quality Guaranteed
Same-Day Pickup Available

87% of customers also add...

Most loved
Best NutraBio Creatine Plus HMB for women and mean
Boost strength & recovery alongside your protein
$49.99

Rule 1 R1 Casein is a 100% micellar casein protein powder delivering 25g of slow-digesting protein per scoop with 10g+ naturally occurring EAAs. Informed Choice Certified for banned substance testing. Ideal before bed or between meals for sustained amino acid delivery.

Lauren J.

Mixes perfectly, tastes amazing, and zero bloating. Best protein I've found. Highly recommend!

INFORMED CHOICE CERTIFIED
100% MICELLAR CASEIN
25G PROTEIN PER SCOOP
INFORMED CHOICE CERTIFIED
100% MICELLAR CASEIN
25G PROTEIN PER SCOOP
INFORMED CHOICE CERTIFIED
100% MICELLAR CASEIN
25G PROTEIN PER SCOOP
INFORMED CHOICE CERTIFIED
100% MICELLAR CASEIN
25G PROTEIN PER SCOOP

You'll Love This Protein

You'll Love This Protein

100% Micellar Casein for Overnight Recovery

Micellar casein forms a gel in the stomach, releasing amino acids slowly over 6-8 hours. Ideal before bed to prevent muscle protein breakdown during the overnight fast.

25g Protein with Full EAA Spectrum

Each scoop delivers 25g of slow-digesting protein with 10g+ naturally occurring essential amino acids and BCAAs. Sustained amino delivery keeps you in a positive nitrogen balance.

Thick, Satisfying Texture

Casein naturally mixes thicker than whey, creating a rich, pudding-like consistency. Great as a dessert-style shake or mixed into Greek yogurt for added protein.

Informed Choice Certified

Every batch independently tested for banned substances by LGC. Same certification standard used by professional and Olympic athletes.

Protein product feature image

Transparency by the numbers

Transparency by the numbers

0g

Micellar Casein

100% micellar casein for slow, sustained amino acid release over 6-8 hours.

0g+

EAAs Per Scoop

Full essential amino acid spectrum with naturally occurring BCAAs for muscle recovery.

6-8hr

Sustained Release

Slow digestion keeps muscles fed overnight or between meals.

* Based on post-purchase surveys and manufacturer data.

Casein Protein
INFORMED CHOICE CERTIFIED
100% MICELLAR CASEIN
25G PROTEIN PER SCOOP
INFORMED CHOICE CERTIFIED
100% MICELLAR CASEIN
25G PROTEIN PER SCOOP
INFORMED CHOICE CERTIFIED
100% MICELLAR CASEIN
25G PROTEIN PER SCOOP
INFORMED CHOICE CERTIFIED
100% MICELLAR CASEIN
25G PROTEIN PER SCOOP

R1 Casein Vs. Generic Casein

R1 Casein Vs. Generic Casein

We only carry brands that meet our strict quality standards. No fillers, no proprietary blends, no shortcuts.

R1 Casein
CHN Approved
Generic Casein
Budget
Protein Source
100% Micellar Casein Casein + filler blends
Protein Per Scoop
25g 20-24g
EAAs Per Scoop
10g+ Often undisclosed
Informed Choice Certified
No Amino Spiking

OUR CHAMPIONS

Keep Coming Back

4.85/5 based on 1,649 verified reviews

Share Your Experience

Know before you scoop!

Still not sure? Our team offers free consultations at both Fort Wayne locations.

What type of protein is best for me? +

It depends on your goals! Whey isolate is ideal for lean muscle with minimal carbs, whey concentrate is great for general fitness, and plant-based options work for dairy-free diets. Visit us in-store for a free consultation and we'll help you find the perfect fit.

How much protein do I need daily? +

Most active adults need 0.7-1g of protein per pound of body weight. If you weigh 180 lbs, aim for 126-180g daily. Our staff can help you dial in the right amount based on your specific activity level and goals.

Can I use protein powder as a meal replacement? +

Yes! Many of our proteins work great as a meal replacement when blended with fruits, nut butter, or oats. For a complete meal, pair your protein shake with healthy fats and carbohydrates to hit your macro targets.

Do you offer samples or flavor recommendations? +

Absolutely! Visit either of our Fort Wayne locations and our team can help you sample flavors before committing to a full tub. We know how important taste is. Life's too short for protein you dread drinking.

Is your protein third-party tested? +

We only carry brands that undergo third-party testing for purity, potency, and banned substances. Quality is non-negotiable. It's why customers have trusted us for 15+ years in Fort Wayne.

What's your return policy on supplements? +

Unopened items may be eligible for return at Complete Health's discretion. Opened products cannot be returned. Clearance items are final sale. To start a return, email completehealthfwsw@gmail.com with your name, product details, and purchase date. If something arrives damaged, snap a photo and reach out right away and we'll get it sorted.

Know before you scoop!
Casein Protein

Casein Protein

Estimated arrival by
Estimated arrival by