Optimum Nutrition Serious Mass Chocolate 2.73kg Health Food
Optimum Nutrition Serious Mass Chocolate 2.73kg Health Food
Optimum Nutrition Serious Mass Chocolate 2.73kg Health Food
Optimum Nutrition Serious Mass Chocolate 2.73kg Health Food
Optimum Nutrition Serious Mass Chocolate 2.73kg Health Food

Optimum Nutrition Serious Mass Chocolate 2.73kg

Regular price £45.97 Sale price£39.78 Save 13%
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Optimum Nutrition Serious Mass Chocolate (2.73kg)

Struggling to Gain Weight? Build Size, Strength & Mass with Every Shake

If you’re not gaining size despite eating more, this is your solution. A powerful, high-calorie mass gainer designed to help you increase weight, muscle size and strength — consistently.


Quick Highlights

  • 2.73kg tub (approx. 16 servings)
  • Rich chocolate flavour
  • 1,250+ calories per serving
  • 50g multi-source protein
  • 250g+ carbohydrates per serving
  • Includes creatine & glutamine
  • Ideal for bulking & hard gainers

Quick Benefits

  • Rapid weight gain support
  • High-calorie muscle fuel
  • Supports size, strength & recovery
  • Helps hit daily calorie targets easily
  • Ideal for fast metabolism / hard gainers

Overview

Optimum Nutrition Serious Mass Chocolate is one of the most effective mass gainers available, designed for those who struggle to consume enough calories through food alone.

Delivering over 1,250 calories per serving, it combines high-quality protein with a carbohydrate-rich formula to support muscle growth, recovery and overall weight gain. Added creatine helps support strength and performance, making it ideal for structured bulking phases.

From Optimum Nutrition — globally trusted for quality and results.


Why Choose This Product

  • Extremely high calorie formula for effective weight gain
  • Multi-source protein for sustained muscle support
  • Includes creatine for strength and power
  • High carbohydrate content to fuel growth
  • Fortified with vitamins and minerals
  • Ideal for bulking phases

Why It Stands Out

  • One of the highest calorie mass gainers available
  • Combines protein + carbs + creatine in one formula
  • Designed specifically for hard gainers
  • Easy way to maintain a calorie surplus
  • Proven, trusted global formula

Who It’s For

  • Hard gainers struggling to gain weight
  • Athletes in a bulking phase
  • Individuals with high calorie requirements
  • Gym-goers aiming to increase size and strength
  • Anyone needing convenient calorie-dense nutrition

What It Helps Support

  • Weight gain and calorie intake
  • Muscle size and growth
  • Strength and power output
  • Recovery after intense training
  • Overall energy and endurance

Ingredients (Per Serving ~334g)

  • Carbohydrate Blend (~250g Maltodextrin)
  • Protein Blend (~50g)
    • Whey Protein Concentrate
    • Calcium Caseinate
    • Egg Albumen
  • Creatine Monohydrate (~3g)
  • L-Glutamine
  • Glutamine Peptides
  • Vitamin & Mineral Blend (A, C, D, E, B Complex, Calcium, Magnesium, Zinc)
  • Cocoa Powder (for chocolate flavour)
  • Natural & Artificial Flavouring
  • Sweeteners (Sucralose, Acesulfame-K)

Nutritional Information

Per Serving (334g with water):

Nutrient Amount
Energy ~1,250 kcal
Protein 50g
Carbohydrates 250g+
Sugars ~20g
Fat 4–5g
Creatine ~3g
Salt ~1g

How to Use

  • Mix 2 heaped scoops (~334g) with 500–700ml water or milk
  • Blend for best consistency
  • Start with half servings if new
  • Can split into 2 servings during the day

When to Use

  • Post-workout for recovery and calorie intake
  • Between meals to boost daily calories
  • Before bed for additional nutrition

When Will You Notice Results

  • Week 1: Increased calorie intake and fullness
  • Weeks 2–4: Gradual weight gain begins
  • Weeks 4–8: Visible increases in size and strength (with training)

Common Mistakes to Avoid

  • Taking full servings too quickly (start smaller)
  • Not training hard enough to utilise calories
  • Skipping meals and relying only on shakes
  • Not drinking enough water (important with creatine)

Stack With (AOV-Driven)

  • Terranova Digestive Enzymes Complex 50 Capsules (supports digestion of high-calorie intake)
  • Revive Active Zest Active 30 Sachets (energy & performance support)
  • Dermalogica Active Moist (daily skincare support with zero ingredient overlap)

FAQs

1. How many calories per serving?
Approximately 1,250 calories with water.

2. Is it good for weight gain?
Yes, specifically designed for gaining mass.

3. Can I split servings?
Yes, recommended for better digestion.

4. Does it contain creatine?
Yes, around 3g per serving.

5. Is it suitable for beginners?
Yes, especially hard gainers.

6. Can I mix it with milk?
Yes, for higher calorie intake.

7. Will it cause fat gain?
Only if calorie intake exceeds your needs.

8. Is it high in sugar?
Moderate relative to total calories.

9. How many servings in 2.73kg?
Approximately 16 servings.

10. Can it replace meals?
It can supplement but not replace whole foods.

11. Is it vegetarian?
Yes.

12. Can I use it without training?
Yes, but best results come with resistance training.


Product Details

  • Brand: Optimum Nutrition
  • Product Type: Mass Gainer Powder
  • Flavour: Chocolate
  • Size: 2.73kg
  • Servings: ~16
  • Form: Powder

Thank you for using our site.

Online/In-store Price Match Guarantee Policy

We guarantee that the prices available on our site www.lirpharmacy.com are also available in Plaza Pharmacy, Unit 2, The Plaza, Swords, Co Dublin. We look forward to meeting you in person! We guarantee that customers can purchase a product in store for the price displayed on our website.

Free Click & Collect

We offer a FREE click & collect service through our pharmacy in Swords Village:

Plaza Pharmacy, Unit 2 The Plaza, Swords, Co Dublin K67 X7P6, Ireland

 

Delivery with DPD

We deliver to Ireland, Northern Ireland and the European Union with DPD.

You will receive a text message or email from DPD on the day of your delivery with an estimated time for delivery of your order. 

DPD offer a Parcel Wizard service that allows you to choose a day and location that suits you to have your parcel delivered.

You may register for this service at www.dpdparcelwizard.ie/Register

Please allow 2 to 7 working days for your order to be delivered. We fulfill the majority of our orders within 16 hours.

In the unlikely event that the item that you ordered is not in stock, we will issue your account with a refund and send the remaining items in your order. 


Returns

We offer a free returns service with DPD. To physically return parcels please use the DPD Pickup Parcelshop site https://dpd.ie/Returns#/

The DPD Parcelshop service has over 600 nationwide collection points that returns may be dropped to. Please include your order number as the DPD reference number.

Returns for eligible products can be made within 14 days of the item being delivered. 

If you have any queries or require assistance please contact us at info@lirpharmacy.com


Shipping costs & delivery
  • We deliver free of charge to Ireland & Northern Ireland for orders of €50 or more.
  • We deliver free of charge to Austria, Belgium, Czech, Denmark, France, Germany, Luxembourg, Netherlands & Poland for orders of €100 or more.
  • We deliver to all other countries free of charge for orders of €200 or more.
    Order Value Rate   Order Value  Rate   # Days
Ireland   >€50 Free   <€50 €5.99   2 to 7
Northern Ireland   >€50 Free   <€50 €5.99   2 to 7
                 
Austria   >€150 Free   <€150 €16.49   4
Belgium   >€150 Free   <€150 €13.50   3
Czech Republic    >€150 Free  

<€150

€16.49   5
Denmark    >€150 Free   <€150 €16.49   4
France   >€150 Free   <€150 €13.50   3
Germany   >€150 Free   <€150 €13.50   3
Luxemburg    >€150 Free   <€150 €13.50   3
Netherlands    >€150 Free   <€150 €13.50   3
Poland    >€150 Free   <€150 €16.49   5
                 
Hungary    >€300 Free   <€300 €24.99   5
Lithuania    >€300 Free   <€300 €24.99   5
Slovakia    >€300 Free   <€300 €24.99   5
                 
Estonia    >€300 Free   <€300 €24.99   5
Italy   >€300 Free   <€300 €24.99   5
Latvia   >€300 Free   <€300 €24.99   5
Sweden   >€300 Free   <€300 €24.99   5

 

 

 
                 
Croatia    >€350 Free   <€350 €39.99   6
Portugal    >€350 Free   <€350 €39.99   6
Finland   >€350 Free   <€350 €39.99   6

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FAQs

Lir Pharmacy is a trusted Irish pharmacy providing a wide range of health, wellness, skincare, vitamins, supplements, baby care, personal care, and pharmacy products from leading brands.

As an Irish pharmacy, in Swords, Co Dublin we are committed to offering genuine products, professional customer support, competitive pricing, and convenient online shopping. Customers across Ireland choose Lir Pharmacy for trusted healthcare products, expert guidance, fast delivery, and access to well-known brands in one secure online pharmacy. Whether you are shopping for vitamins, supplements, skincare, beauty products, or everyday health essentials, Lir Pharmacy aims to make finding quality products simple and convenient.

Choosing the right product depends on your individual needs, preferences, and goals. Start by considering what you are looking for, whether that's skincare, vitamins, supplements, wellness products, personal care items, or everyday healthcare essentials.

Reviewing product descriptions, ingredients, directions for use, and customer information can help you compare options and make an informed choice.

At Lir Pharmacy, we provide detailed product information across our collections to help customers find suitable products from trusted brands. Factors such as age, lifestyle, dietary preferences, skin type, and personal requirements may influence which product is most appropriate for you.

If you are unsure which product best meets your needs, you can contact Lir Pharmacy for further guidance. Our goal is to help customers confidently explore vitamins, supplements, skincare, beauty products, healthcare essentials, and wellness solutions from leading brands available in Ireland.

Yes. Our pharmacy team is available to provide guidance on products, ingredients, suitability and usage. If you have any questions before purchasing, please contact us for advice.
Choosing the right product can depend on your individual circumstances, preferences, and intended use.

Lir Pharmacy aims to help customers make informed decisions by providing detailed product information, ingredient details, usage guidance, and educational content across our website. Customers can also contact Lir Pharmacy if they require further assistance when selecting products from our health, wellness, skincare, supplement, beauty, or personal care collections. Reading product information carefully before purchase is always recommended.

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We stock products from many of the most recognised names in healthcare, vitamins, supplements, skincare, beauty, and wellness. Shopping with a trusted Irish pharmacy provides reassurance that products are sourced through reputable supply chains and stored according to appropriate standards. Customer trust, product quality, and authenticity remain key priorities at Lir Pharmacy.

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Our online pharmacy service makes it convenient for customers throughout Ireland to access trusted brands and everyday health products. Delivery information, shipping options, and estimated delivery times can be viewed during the checkout process and on our delivery information pages.

Lir Pharmacy offers fast and reliable delivery throughout Ireland. Most orders are dispatched promptly, with delivery times typically depending on the shipping option selected, stock availability, and the destination within Ireland.

Orders placed on working days are processed as quickly as possible, and many customers receive their orders within a few business days. Once your order has been dispatched, you may receive tracking information where available, allowing you to monitor your delivery's progress.

As a trusted Irish online pharmacy, Lir Pharmacy aims to provide a smooth shopping experience with secure ordering, dependable delivery, and access to a wide range of health, wellness, skincare, beauty, vitamin, and supplement products. For the latest delivery information, shipping rates, and estimated delivery times, please visit our Delivery Information page.

Orders are typically processed within 1–2 business days. Delivery times vary by location, but most orders arrive within 2–3 business days. You’ll receive tracking details once your order ships.

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