Shop Energy Supplements at Myprotein
Energy supplements are carbohydrate-based formulas designed to fuel your training, top up your glycogen stores, and keep you going when output matters most. Whether you're heading into a long session or need a reliable source of fast-acting carbs around your workout, this range covers the essentials — from clean whole-food options to rapidly digestible formats built for performance.
Every product here is developed by Myprotein's expert nutritionists to deliver straightforward, effective nutrition without the noise. You'll find a variety of formats, flavours, and carbohydrate sources to match different training styles, dietary preferences, and daily routines — all built around the kind of quality you'd expect from one of the UK's leading sports nutrition brands.
Who Energy Supplements Are For
These energy supplements are built for anyone with a serious training schedule who needs to hit specific carbohydrate targets. Endurance athletes, gym-goers, team sports players, and competitive lifters all rely on carbohydrate intake to fuel performance — and this range makes it easy to load up before, during, or after training with a precise, trackable source of carbs.
They're also a solid fit for anyone who struggles to hit their carb targets through food alone. Whether you're in a muscle-building phase and need to eat in a caloric surplus, or you're an athlete with high energy demands and a packed schedule, energy supplements offer a practical, convenient way to fill the gaps in your nutrition.
When to Use Energy Supplements
Timing depends on the format and your goal. Fast-digesting options like maltodextrin work well immediately before or during training, when your muscles need readily available carbohydrates. Whole-food-based products like oats and cream of rice are better suited to pre-workout meals eaten one to two hours before exercise, giving your body time to digest and absorb.
Post-workout is another key window. Carbohydrates contribute to the recovery of normal muscle function after highly intensive and/or long-lasting physical exercise leading to muscle fatigue and the depletion of glycogen stores in skeletal muscle.1 Pairing a carbohydrate supplement with a protein source after training is a common approach among athletes looking to make the most of this window.
Energy Supplements Benefits
A Reliable Source of Carbohydrates
Each product in this range is formulated to deliver a meaningful dose of carbohydrates per serving — from 39g in Origin Cream of Rice to 62g in 100% Instant Oats. Rather than relying on inconsistent food sources, you get a measured, repeatable amount of carbs every time, making it easier to plan your nutrition around your training.
Supports Normal Brain Function
Carbohydrates contribute to the maintenance of normal brain function.2 During intense training blocks or demanding competition schedules, maintaining adequate carbohydrate intake matters beyond just physical output — cognitive sharpness is part of the picture too.
Flexible Formats for Different Routines
From instant oats and cream of rice to pure maltodextrin and EAA formulas, this range covers a broad spectrum of use cases. Some formats mix into a shake in seconds; others work as a proper pre-workout meal. That variety means you can match the right product to the right moment in your day.
Easy to Stack With Other Supplements
Energy supplements work well alongside protein powders, creatine, and amino acid products. Carbohydrate sources like 100% Maltodextrin Carbs are virtually flavourless and blend cleanly with other powders, making them easy to incorporate into existing supplement routines without overhauling what you're already doing.
Popular Picks
Origin Cream of Rice — A vegan-friendly breakfast built for carb loading, Origin Cream of Rice delivers 39g of complex carbs per serving in a smooth, easy-to-digest bowl.
100% Instant Oats — With 62g of carbs, 11g of protein, and a solid hit of fibre per serving, 100% Instant Oats is the no-fuss whole-food option for anyone who wants real nutrition without the prep.
100% Maltodextrin Carbs — When you need a straightforward, vegan-friendly carb source, 100% Maltodextrin delivers 50g of carbs per serving with nothing to get in the way.
FAQs
What are energy supplements?
Energy supplements are carbohydrate-based products formulated to provide a concentrated, trackable source of carbs around training. They come in various forms — including whole-food options like oats and cream of rice, and fast-digesting powders like maltodextrin — each suited to different timing windows and training demands. Unlike general food sources, they offer precise carbohydrate quantities per serving, making them a practical tool for athletes with specific nutritional targets.
What's the difference between fast-digesting and slow-digesting carb supplements?
Fast-digesting carbohydrate supplements, like 100% Maltodextrin Carbs, break down and enter the bloodstream quickly, making them well-suited to use immediately before or during training. Slow-digesting options, like 100% Rolled Oats or 100% Instant Oats, release carbohydrates more gradually and are better suited to pre-workout meals eaten an hour or two before exercise. The right choice depends on your timing and goals.
Which energy supplement do you recommend for post-workout?
100% Maltodextrin Carbs is a popular post-workout choice, delivering 50g of carbohydrates per serving in a format that mixes easily with protein powder. After highly intensive or long-lasting exercise that depletes glycogen stores, carbohydrates contribute to the recovery of normal muscle function.1 Pairing it with a protein source is a straightforward way to cover both nutritional bases in a single shake.
Can energy supplements be used as a meal replacement?
Products like 100% Instant Oats and Protein Oats are substantial enough to work as a pre-workout meal, offering 62g of carbs and 11g of protein per serving respectively. That said, they're not nutritionally complete meal replacements in the clinical sense — they're sports nutrition products designed to complement a balanced diet, not replace it entirely.
Are carb supplements suitable for endurance athletes?
Carbohydrate-based energy supplements are a staple across endurance sports for good reason. Carbohydrate solutions contribute to the improvement of physical performance during high-intensity and long-lasting physical exercise in trained adults.3 Formats like maltodextrin are particularly practical during prolonged sessions, where maintaining carbohydrate availability becomes increasingly important as exercise duration extends.
How do energy supplements fit into a muscle-building diet?
Building muscle typically requires a caloric surplus, and hitting the carbohydrate side of that can be challenging through food alone. Energy supplements like 100% Instant Oats — with 62g of carbs and 11g of protein per serving — make it easier to increase total intake without relying solely on whole-food meals. They can be taken at any point in the day where an extra carb hit is needed.
How many carbs should I aim for around my workout?
Carbohydrate needs vary significantly based on bodyweight, training intensity, duration, and individual goals. There's no universal number that works for everyone. Most sports nutrition guidance suggests higher carbohydrate intake around demanding sessions, with pre- and post-workout windows often highlighted as particularly important. Working with a registered nutritionist or sports dietitian is the most reliable way to establish your personal targets.
Who develops Myprotein's energy supplements?
Myprotein's energy supplements are developed by an in-house team of expert nutritionists. Every product is formulated to meet specific performance nutrition needs, with careful attention to ingredient quality, macronutrient delivery, and practical usability — whether that's instant mixability, clean flavour profiles, or versatility across different use cases.
What formats do energy supplements come in?
The range includes powders, instant oats, rolled oats, cream of rice, and blended protein-carb formulas. Some, like 100% Maltodextrin Carbs, are designed to mix quickly into shakes. Others, like Origin Cream of Rice and 100% Instant Oats, work as standalone meals with added liquid. Impact EAA and Collagen Protein Powder also sit within the broader range for those looking to combine amino acid intake with their carbohydrate strategy.
Can I mix energy supplements with protein powder?
Mixing carbohydrate supplements with protein powder is one of the most common approaches in sports nutrition. 100% Maltodextrin Carbs is virtually unflavoured and blends cleanly with most protein powders, making it easy to build a post-workout shake that covers both macronutrients in one serving. It's a simple, practical way to customise the carb-to-protein ratio of your shake based on your goals.
1. Carbohydrates contribute to the recovery of normal muscle function (contraction) after highly intensive and/or long-lasting physical exercise leading to muscle fatigue and the depletion of glycogen stores in skeletal muscle.
2. Carbohydrates contribute to the maintenance of normal brain function.
3. Carbohydrate solutions contribute to the improvement of physical performance during a high-intensity and long-lasting physical exercise in trained adults.