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Optimum

Optimum Nutrition Serious Mass

Optimum Nutrition Serious Mass

Regular price £31.99
Sale price £31.99 Regular price
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Size: 2.73kg
Flavour: Strawberry

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Description

SUPPORT WEIGHT GAINS WITH SERIOUS MASS™

Serious weight gain requires serious calories. However, those who need the extra calories most often have the toughest time consuming enough of them. For many aspiring to be bigger, a highly active metabolism, weaker appetite and on-the-run lifestyle can make it a real challenge to consume enough calories through whole foods alone. Optimum Nutrition Serious Mass is the ultimate in weight gain formulas. With 1,250 calories per serving to boost daily calorie intake, 50g high protein to support muscle growth and repair, over 250g carbohydrates helping support muscle recovery , and now with 3g added Creatine to support performance per serving, you’ve got nothing to lose and lots to gain. It is time to stop thinking small and get serious – SERIOUS MASS®

Description
Ready to mix powder with protein, carbohydrates, vitamins and minerals, with sweetener

Benefits
  • 1250 Calories
  • 50 g of Whey Protein
  • 25 Vitamins and Minerals
  • 3 GRAMS OF CREATINE TO SUPPORT PERFORMANCE◊
  • Ideal formula to support weight gains
  • Enjoy post work-out and between meals
  • Available in a range of sizes and great tasting flavours

Suggested Use
Mix 2 heaped scoops of Optimum Nutrition with 710 ml of water. You can also add a serving to smoothies, protein balls, muffins, porridge or other meals as another great way to get a protein hit in the kitchen.

Allergy advice
For allergens, see ingredients in bold. may contain traces of soy, nuts and peanuts

Why Training Fuels

We do the heavy lifting so you don’t have to. At Training Fuels, we handpick the most effective, science-backed supplements from the world’s leading brands trusted by professional athletes, personal trainers and individuals globally. Just high-performance products that deliver real results. Every item we stock is tested, proven, and ready to help you push further.

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  • Exceptional service! Their product surpassed my expectations, offering unparalleled quality and value. Highly recommend!

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  • Exceptional service! Their product surpassed my expectations, offering unparalleled quality and value. Highly recommend!

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FAQ's

Whether you're new to supplements or a seasoned lifter, we’re here to help. Below you'll find answers to the most common questions about our products, shipping, and support. Still need help? Just drop us a message, our team’s always ready to chat.

Get in touch

customerservice@trainingfuels.com

The average response time is 24 hours.

Our customer support operates from Monday to Friday, between 8:00 AM and 5:30 PM.

We only stock high-quality, proven products from trusted brands. No gimmicks, no dodgy blends — just supplements we genuinely believe in, used by athletes and trainers alike.

Yes. Our team is here to help you build the right stack for your goals — whether you're focused on performance, recovery, or overall health. Just reach out and we’ll guide you.

Absolutely. We only source directly from authorised suppliers and reputable brands, so you can shop with total confidence.

We offer fast UK shipping, with most orders dispatched within 24 hours. You’ll get tracking info as soon as your order is on the way.

Currently, we ship across the UK. We're working on expanding our reach, stay tuned or drop us a message if you're outside the UK.

Yes, unopened items can be returned within 14 days of delivery. For full details, visit our returns policy page.

Yes 🙌 keep an eye out for bundle offers, seasonal discounts, and subscriber-exclusive deals via our newsletter.

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