Intra Workout

Shop Intra Workout at Myprotein

Intra workout supplements are designed to be taken during your training session — keeping you fuelled, hydrated, and focused from the first rep to the last. Whether you're looking for electrolyte powder to replace what you lose through sweat, a carbohydrate and electrolyte blend for longer sessions, or amino acid formulas to fuel your effort, this range covers the full spectrum of mid-session nutrition.

From fast-dissolving electrolyte tablets to powders you mix into your water bottle, every format here is built for convenience during training. Carbohydrate-electrolyte solutions contribute to the maintenance of endurance performance during prolonged endurance exercise¹ — which is exactly why the right intra workout formula matters when you're pushing through a long run, a HYROX race, or an intense gym session.

Who Intra Workout Are For

This range is built for anyone who trains hard enough to sweat. Endurance athletes, HYROX competitors, gym regulars, and recreational runners all have one thing in common: they lose fluid and minerals during exercise, and mid-session nutrition can make a real difference to how a session feels from start to finish.

You don't need to be an elite athlete to get value from intra workout products. Anyone doing sessions lasting more than 45–60 minutes — whether that's weightlifting, cycling, team sport, or high-intensity interval training — will find something in this range worth reaching for mid-session.

When to Use Intra Workout

The clue's in the name — these products are made to be used during exercise. Electrolyte powders and tablets are best mixed into your water bottle before you start and sipped throughout your session. For longer or higher-intensity efforts, a carbohydrate and electrolyte formula gives you both fluid replenishment and a source of fast-acting carbohydrates at the same time.

Timing varies slightly by format. Amino acid powders and EAA blends are typically sipped steadily throughout training rather than taken all at once. For sessions under 45 minutes, plain electrolytes may be all you need. For anything longer or more demanding — think race day, a double session, or strength training with high volume — a carbohydrate-electrolyte solution is worth considering, as these enhance the absorption of water during physical exercise².

Intra Workout Benefits

Electrolyte Replenishment

Sweat isn't just water — it contains sodium, potassium, magnesium, and other minerals your body needs to keep working. Electrolyte products in this range are formulated specifically to replace those minerals during exercise. Magnesium contributes to normal muscle function³ and potassium contributes to normal muscle function⁴, making mineral replacement a practical priority mid-session.

Carbohydrate Fuelling During Exercise

Carbohydrates are the body's preferred fuel source during high-intensity exercise. Carbohydrate-electrolyte solutions contribute to the maintenance of endurance performance during prolonged endurance exercise¹, and 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 muscle⁵. For longer sessions, a carb and electrolyte blend keeps both hydration and fuel topped up simultaneously.

Amino Acids Mid-Session

EAA and BCAA products give you essential amino acids — the building blocks of protein — in a format designed for drinking during training. Protein contributes to the growth and maintenance of muscle mass⁶, and EAAs are the amino acids your body can't produce on its own, making them a popular mid-session addition for those focused on training volume and intensity.

Flexible Formats for Every Session

This range spans powders, tablets, sachets, gummies, and ready-to-mix gels — so there's a practical format for every training environment. Tablets and sachets are easy to carry to the gym or race start. Powders give you more flexibility with serving size. Gels are purpose-built for on-the-go fuelling during endurance events where you need quick, portable energy.

Popular Picks

THE Electro - HYROX | Electrolyte Powder — Built for those who train hard every day, THE Electro - HYROX delivers 650mg sodium and 300mg potassium, which contributes to normal muscle function, to replace what's lost through sweat.

THE Electro | Electrolyte Tablets — THE Electro tablets are the no-fuss way to replenish electrolytes on the go, with 500mg sodium per fast-dissolving tablet and vitamin C, which contributes to the normal function of the immune system and the reduction of tiredness and fatigue.

THE Electrofuel - HYROX | Carbohydrate & Electrolyte Powder — With 30g of carbohydrates per serving at a 2:1 maltodextrin to fructose ratio, THE Electrofuel - HYROX is the intra-workout fuel built to keep you going when it counts.

FAQs

What are intra workout supplements?

Intra workout supplements are products formulated specifically to be consumed during a training session. They typically include electrolytes, carbohydrates, and/or amino acids in formats — powders, tablets, gels, gummies, and sachets — designed to be easy to take mid-exercise. The range at Myprotein covers everything from straightforward electrolyte tablets to full carbohydrate and electrolyte powders built for endurance sport.

What's the difference between electrolyte powder and electrolyte tablets?

Electrolyte powder is mixed with water to create a drink you can sip throughout your session — it's easy to adjust the concentration and often comes in a range of flavours. Electrolyte tablets dissolve directly in water and are more portable, making them a practical choice for travel, racing, or training on the go. THE Electro Electrolyte Tablets, for example, deliver 500mg of sodium per tablet in a fast-dissolving format. Both formats do the same job — it comes down to convenience and personal preference.

Do I need a carbohydrate and electrolyte powder or just electrolytes?

For sessions under 60 minutes at moderate intensity, a straightforward electrolyte product is usually sufficient. For longer or higher-intensity efforts — endurance events, HYROX races, high-volume training days — a carbohydrate and electrolyte formula makes more sense, since it provides both hydration and a readily available fuel source at the same time. Carbohydrate-electrolyte solutions contribute to the maintenance of endurance performance during prolonged endurance exercise¹ and enhance the absorption of water during physical exercise².

What are EAAs and BCAAs, and why take them intra workout?

EAAs (essential amino acids) are the nine amino acids your body can't synthesise on its own and must get from food or supplements. BCAAs (branched-chain amino acids) are three of those nine — leucine, isoleucine, and valine. Both are forms of amino acids, which are the building blocks of protein, and protein contributes to the growth and maintenance of muscle mass⁶. Many athletes include EAA or BCAA products as part of their intra workout routine, sipping them steadily throughout a session.

Which intra workout product would you recommend for endurance training?

For endurance sessions and events, THE Electrofuel - HYROX Carbohydrate & Electrolyte Powder is a strong option. It delivers 30g of carbohydrates alongside an electrolyte blend, making it suited to long-duration efforts where both fuelling and hydration matter. Carbohydrate-electrolyte solutions contribute to the maintenance of endurance performance during prolonged endurance exercise¹, so a combined formula is a practical choice for anything from marathon training to HYROX competition.

How do I use electrolyte supplements during exercise?

Mix your chosen electrolyte powder or tablet into a water bottle before your session and sip it steadily throughout. There's no single rigid timing rule — consistent sipping works better than drinking large amounts all at once. For carbohydrate and electrolyte products, starting to drink from the early stages of a longer session tends to be more effective than waiting until you feel depleted.

Are there different formats available in the intra workout range?

There's a wide range of formats available — powders, tablets, sachets, gummies, and ready-to-use energy gels. Powders offer flexibility in serving size and are easy to prepare at home before training. Tablets and sachets are compact and portable. Gels are purpose-designed for on-the-go fuelling during races or outdoor endurance sessions where carrying a bottle isn't always practical. The range spans over 20 products, so there's a format suited to most training environments and preferences.

Who developed the intra workout range at Myprotein?

The intra workout range is developed by Myprotein's expert nutritionists, who formulate each product to meet the specific demands of mid-session nutrition. That means considering not just ingredient selection, but format, dosage, and the practical realities of taking a supplement during exercise rather than before or after it.

Can I combine an electrolyte product with a BCAA or EAA powder?

Many athletes mix or stack intra workout products — for example, adding BCAAs to an electrolyte drink, or alternating between an EAA formula and a carbohydrate-electrolyte blend across a long session. There's nothing stopping you combining formats, though it's worth paying attention to total sodium intake if you're using multiple electrolyte-containing products in the same session. Starting with one product and adjusting from there is a practical approach.

What's the sodium content like in Myprotein electrolyte products?

Sodium levels vary by product and format. THE Electro - HYROX Electrolyte Powder delivers 650mg of sodium per serving, while THE Electro Electrolyte Tablets provide 500mg per tablet. Sodium is the primary electrolyte lost through sweat, so the amount you need will depend on session length, intensity, and individual sweat rate. Longer and more intense sessions typically warrant higher sodium replacement.

1. Carbohydrate-electrolyte solutions contribute to the maintenance of endurance performance during prolonged endurance exercise.  

2. Carbohydrate-electrolyte solutions enhance the absorption of water during physical exercise.  

3. Magnesium contributes to normal muscle function.  

4. Potassium contributes to normal muscle function.  

5. 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.  

6. Protein contributes to the growth and maintenance of muscle mass.