John Clarke Sports Nutrition

About John Clarke Sports Nutrition

John Clarke Sports Nutrition is a British food supplement brand founded in Nottingham, in the United Kingdom. Positioned in the performance and wellbeing segment, it caters to regular athletes as much as to active people looking to support their day-to-day energy, their recovery and their hormonal balance.

The brand stands out for a results-driven approach: every formula is designed by a professional nutritionist, put through third-party laboratory testing, and built to slot easily into a daily routine. The range covers a broad spectrum, from Himalayan adaptogens to creatine gummies, taking in complete stacks aimed at performance or weight management.

Origins and vision

John Clarke Sports Nutrition is based in Nottingham, England (address: Suite 99, 1 Hanley Street, NG1 5BL). The company is founded and run by a professional nutritionist, which steers formulation choices directly towards scientifically documented ingredients.

The stated vision rests on three commitments:

• Formulas grounded in science, with ingredients recognised in the nutrition literature
• Independent quality control, through third-party laboratory testing (Verifier Labs, certified)
• Genuine accessibility, with no compulsory subscription and several flexible delivery options

All of the brand’s communication leans on transparency: certificates of analysis are published, compositions are detailed product by product, and the founder remains directly reachable.

Ranges and specialities

John Clarke Sports Nutrition builds its catalogue around several complementary strands. The adaptogens and vitality strand is the most developed, with several formulas based on Himalayan shilajit, ashwagandha and chaga. A second strand covers sports performance (creatine, whey protein, alpha capsules). A third, more recent one focuses on weight management and appetite control, through the Suppressa and Reta GLP-1 ranges.

The formats vary:

• Gummies (sugar-free for most of the range)
• Capsules and resins
• Powders (whey protein)
• Multi-product bundled stacks

This variety of formats answers a range of user profiles, from the gym-goer to the professional looking for a practical supplement to fit into their day.

John Clarke Sports Nutrition products

Super Shilajit Gummies, adaptogen gummies

Super Shilajit Gummies combine authentic Himalayan shilajit with ashwagandha and chaga, in a sugar-free gummy format of 60 units. This product is among the brand’s best sellers. It aims to support energy, mental clarity and day-to-day recovery. Ashwagandha brings recognised support for stress management, while chaga contributes antioxidant protection.

Shilajit Capsules, fulvic acid complex capsules

Shilajit Capsules stand out for their precise formulation: each 2-capsule serving delivers 500 mg of pure Himalayan shilajit (10:1 extract), 250 mg of chaga (10:1 extract), 200 mg of ashwagandha, vitamin D2 (100% of the NRV) and vitamin B12 (200% of the NRV). The fulvic acid content has been independently verified at 7.86% by Verifier Labs (certificate CLA004, July 2025). Format: 60 vegetarian capsules, 30 servings. Price: from £29.99.

Creatine Gummies, creatine monohydrate gummies

Creatine Gummies deliver high-quality creatine monohydrate (3,000 mg per serving) in a sugar-free gummy format with a pineapple flavour. Designed for intense sessions, they make creatine supplementation simpler for anyone who would rather avoid powders.

The Invincible Stack, complete 5-product stack

The Invincible Stack brings together five flagship products in one bundle: Super Shilajit Gummies, Sea Moss Gummies, Creatine Gummies, Alpha Capsules and Grow Gummies. Sold at £79.99 (a 34% saving on the combined price), this stack covers energy, strength, focus, recovery and immune support all at once. Available as a 1, 2 or 3-month supply.

Grow Gummies, hormonal and vitality complex gummies

Grow Gummies offer a sugar-free seven-ingredient complex: Tribulus, Horny Goat Weed, L-Arginine, Maca Root, Polypodium Vulgare, Panax Ginseng and Saw Palmetto. This 60-unit gummy format targets hormonal balance, muscle recovery and vitality.

Quality and certifications

John Clarke Sports Nutrition claims manufacturing standards in line with GMP standards (Good Manufacturing Practices). The products are described as 100% vegan and non-GMO on the Shilajit Capsules product page. The brand carries out independent laboratory testing:

• Body: Verifier Labs Ltd (Magna Way, United Kingdom)
• Method: D-3368 titration for fulvic acid content
• Published result: 7.86% fulvic acid on batch CLA004 of the Shilajit Capsules (certificate dated 07/08/2025)

These certificates of analysis can be viewed on the official site, reinforcing transparency about what is actually in the products.

How to take John Clarke Sports Nutrition supplements

The gummy and capsule formats are designed for simple daily use, with no preparation or equipment needed. For the Shilajit Capsules, the recommended intake is 2 capsules a day, ideally in the morning with a light meal.

For stacks such as The Invincible Stack, the suggestion is to take the servings 20 minutes before training on training days, and at any time of day on rest days.

A few practical points to keep in mind:

• All the gummies in the performance range are sugar-free
• The vegetarian capsules are suitable for vegan diets
• Do not exceed the recommended daily dose
• Speak to a healthcare professional if you are on medication, pregnant or breastfeeding

In summary

John Clarke Sports Nutrition offers a range of food supplements built for performance and everyday wellbeing, with lab-tested formulas, documented ingredients and formats to suit any routine. To see the full selection, head to the brand page.