Maximuscle

Recorded answer text · Google AI Overviews · 8 November 2026

British gym-goers commonly use several prominent sports nutrition and supplement brands widely available across the UK:

- Applied Nutrition: A leading UK-based brand known for popular lines like ABE (All Black Everything) pre-workouts, Critical Whey, and Critical Mass. - Optimum Nutrition (ON): A globally recognized staple (famous for Gold Standard Whey) heavily trusted by UK lifters for protein and creatine. - MyProtein: A massive British direct-to-consumer brand very popular for everyday whey, clear whey isolates, and specialty co-branded recovery products (such as their HYROX line). - TBJP (Training Junkies / Trained by JP): A prominent UK bodybuilding and strength-focused brand created by coach Jordan Peters. - Per4m: Well-known in UK supplement shops for its vast range of whey protein flavors and cream-of-rice products. - CNP & Efectiv Nutrition: Established names frequently stocked in British fitness and bodybuilding retailers. - Maximuscle & Science in Sport (SiS): Traditional UK brands long associated with gym culture, endurance, and general sports performance. - Vivo Life & Dr. Vegan: Popular choices among British gym-goers looking for plant-based, organic, or allergen-friendly protein and creatine blends.

If you're looking for specific products, let me know:

- What is your main fitness goal (muscle gain, fat loss, endurance, or general health)? - Are you looking for dairy-free or plant-based options?

Recorded answer text · ChatGPT · 8 November 2026

For runners in Britain, the best supplements are those that improve endurance, help you fuel longer runs, support recovery and correct nutritional deficiencies.

The important thing is that you don't need a cupboard full of supplements\. A handful of well-chosen products can make a meaningful difference.

Here are my recommendations based on sports nutrition evidence and products available in the UK.

# Best supplements for runners

## 1\. Best overall choices

!SIS Go Isotonic 60ml Energy Gels Mixed Flavour Box of 7 | SDJ Sports

1\. Energy gels

(Strong evidence)

- Best for: Long runs, half-marathons and marathons. - Provide carbohydrates during exercise. - Aim for 30-60g carbohydrate per hour for longer runs, adjusting to duration and tolerance.

Examples: SiS GO Isotonic Energy Gels\.

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!ZERO | Electrolyte Drink Tablets | Sugar Free Hydration | HIGH5

2\. Electrolytes

(Useful for longer runs)

- Best for: Hot weather, heavy sweating and prolonged sessions. - Replace sodium and other electrolytes lost through sweat. - Not usually necessary for short, easy runs.

Example: HIGH5 ZERO\.

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!Optimum Nutrition Gold Standard Whey Powder | Holland & Barrett

3\. Whey protein

(Good recovery support)

- Best for: Recovery and muscle repair. - Convenient way to meet daily protein requirements. - Aim for roughly 1.2-1.6g protein per kg body weight daily, depending on training.

Example: Optimum Nutrition Gold Standard Whey\.

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!Beet It Sport Nitrate 400 Shot (15 x 70ml) - James White Drinks

4\. Beetroot juice

(Potential performance benefit)

- Best for: Endurance and race performance. - Dietary nitrate may improve exercise efficiency. - Particularly worth considering before an important race.

Example: Beet It Sport\.

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!Vitabiotics Ultra Vitamin D Tablets 1000 IU 96 per pack | British Online

5\. Vitamin D3

(Worth considering in Britain)

- Important for bone and muscle health. - Particularly relevant during autumn and winter when sunlight exposure is limited. - UK government guidance recommends 10 micrograms (400 IU) daily during autumn and winter for most adults.

Avoid excessive doses.

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!MaxiMuscle Caffeine Tablets 175g | H&B

6\. Caffeine

(Strong performance evidence)

- Best for: Race-day performance and demanding sessions. - Can reduce perceived effort and improve endurance. - Start with a modest dose; too much can cause anxiety, stomach problems and disrupted sleep.

The evidence supports caffeine, carbohydrate fuelling and nitrate for particular endurance situations. Protein supports recovery, while vitamin D is primarily about maintaining adequate nutritional status. doi.orgpubmed.ncbi.nlm.nih.govbjsm.bmj.comonlinelibrary.wiley.com

## 2\. What I wouldn't spend much money on

- Expensive BCAA supplements if you already eat enough protein. - Testosterone boosters. - Fat-burning supplements. - High-dose antioxidant combinations. - Iron supplements without a blood test confirming a need.

Iron deficiency can seriously affect running performance, but excess iron can be harmful.

## 3\. My suggested basic running supplement routine

| When | What | |--------|--------| | Breakfast | Vitamin D3 during autumn/winter | | After training | Protein if needed | | Before a race | Caffeine, if tolerated | | During long runs | Energy gels or sports drink | | During prolonged, sweaty runs | Electrolytes |

For tested athletes, look for independently batch-tested products such as Informed Sport certified supplements. onlinelibrary.wiley.comeis2win.co.uk

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# Let me tailor this to your running

The best combination depends considerably on your running distance and goals.

1\. What distance do you mainly run?

5K-10K

Half marathon

Marathon

Ultra marathon

General fitness and shorter runs

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2\. What's your main goal?

Improve speed and fitness

Improve endurance and stamina

Recover faster and prevent fatigue

Lose weight while maintaining performance

Overall health and fitness

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3\. How often do you run?

1-2 times weekly

3-4 times weekly

5-6 times weekly

Every day

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4\. Your age range?

Under 30

30-45

46-60

Over 60

[Build my running supplement plan]

I can then narrow this down to the best 4-6 supplements worth buying in Britain, with recommended brands, approximate prices and when to take them.

Recorded answer text · Perplexity · 4 October 2026

For most people in the UK, Optimum Nutrition Serious Mass is the best all-round mass gainer if you struggle to eat enough calories. A labelled two-scoop serving provides roughly 1,250 calories and 50 g of protein.

### Best options

- Best overall: Optimum Nutrition Serious Mass - very high calorie content, widely available, and useful for hard gainers. - Best for athletes: Maximuscle Progain - Informed-Sport certified, making it a sensible choice for tested athletes. - Best value: Bulk Powders Mass Gainer - generally recommended when price per serving is the main priority. - Best leaner option: Critical Mass Professional - better if you want substantial calories without using the biggest possible shake.

Recommendation: Start with half a serving after training or between meals, then increase only if your body weight is not rising. Mass gainers are calorie supplements-not magic muscle builders-so aim for a modest calorie surplus, adequate resistance training, and around 1.6-2.2 g of protein per kg of body weight daily.