https://www.vccircle.com/pefirms-circle-nutrition-firm-behind-fast-up-chicnutrix-brands
PE firms circle nutrition firm behind Fast&Up, Chicnutrix brands
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https://www.business-live.co.uk/retail-consumer/protein-works-supplements-nutrition-firm-33103255
Protein Works: Supplements and nutrition firm hits £55m in 13 years | Business Live
Dec 22, 2025 - Protein Works has grown from a spare bedroom operation to a global business with more than 2.5 million customers
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