Skip to content

Enjoyed by our customers

★★★★★★★★★★

4.7

|

11K + Product reviews

Free shipping on orders above €60

15% off your first order when you sign up to our newsletter

Offers
Shop
- Protein
  
  Discover Protein
  Shop All
- Clear Protein
  
  Discover Clear Protein
  Shop all
- Creatine
  
  Discover Creatine
  Shop All
- Electrolytes
- Energy
  
  Discover Energy
  Shop All
- Weight Gainers
- Vitamins
- Elite
- Shakers
- Bundles
- Shop All Products
Goals
Advice
Protein Calculator
Partnerships

Optimum Nutrition

Country
Search
Login
Cart
0 items

Offers
Protein Calculator

Country

Electrolytes
Weight Gainers
Vitamins
Elite
Shakers
Bundles
Shop All Products

Lean Physique
Build Muscle
Weight Management
Active Lifestyle
High Performance
Endurance

Recipes
Blogs
Ask Coach Optimum
Expert Advice
New to Supplements
Optimum Insiders

Swedish Ice Hockey Federation
Nordic Storm
McLaren
Our Athletes

Discover Protein
Shop All

Discover Clear Protein
Shop all

Discover Creatine
Shop All

Discover Energy
Shop All

0

Your cart is empty

Continue shopping

Home
Weight Gainers

Filters

Sort by

Featured

Most relevant

Best selling

Alphabetically, A-Z

Alphabetically, Z-A

Price, low to high

Price, high to low

Date, old to new

Date, new to old

Weight Gainers

2 products

Serious Mass Weight Gainer Protein Powder

Serious Mass Weight Gainer Protein Powder

Serious Mass Weight Gainer Protein Powder

Sale priceFrom €30,00

Save €10,15

Serious Mass Gainer & Creatine Pack

Serious Mass Gainer & Creatine Pack

Sale price€91,35

Regular price€101,50

Join the Optimum Nutrition community

Be part of over 100K fitness enthusiasts and unlock:

15% discount on your first order
Exclusive member discounts & first access to new products
Expert tips to maximise your performance

E-mail

CUSTOMER SERVICE

Customer Service
Delivery Information
Payment Options
Ordering
Return Policy
FAQ
Contact

ABOUT OPTIMUM NUTRTITION

Authentic Products
Our Quality
About Us
Privacy Policy
Competition T&Cs
Modern Slavery Act Transparency Statement
Sustainability Commitment
Careers
B2B Sign-up form
B2B Login
Cookies
Your Privacy Choices

EXPLORE

Advice
Athletes
Recipes
Health & Performance course
Recycle

FOLLOW US

Instagram
YouTube

NEED HELP?

Submit Query

Country

Language

© 2026, Optimum Nutrition.