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ROSY.
NUTRITION & PERSONAL TRAINING
The ROSY journal.
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Vitamin D and Your Immune System: What Does the Research Say?
Can vitamin D supplements prevent infections? Discover what the latest research reveals about immune health and when supplementation is recommended in the UK.
Aug 6, 20258 min read


Should You Take Creatine? Benefits, Risks and What the Research Says
Should you take creatine? Discover what scientific research reveals about strength, muscle development, weight gain and safety, alongside practical guidance on creatine monohydrate supplementation.
Jul 4, 20256 min read
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