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Gastritis: Causes, Symptoms and Nutritional Sup...

  Written and medically reviewed by Dr Zeeshan Afzal (MBBS) — Medical Doctor & Medical Content Lead, Welzo Evidence-based · Aligned with NHS and international gastroenterology guidance Last updated: January...

Calprotectin Testing: Ruling Out IBD

Reviewed and written by Dr Zeeshan Afzal, MBBS — Medical Doctor and Clinical Content Lead at Welzo. Last updated: August 2026. If your GP has ordered a calprotectin test in...

Zonulin Testing and Leaky Gut: Does It Work?

Medically reviewed and written by Dr Zeeshan Afzal (MBBS), Medical Content Lead at Welzo. Last updated: August 2026. The zonulin test is currently one of the most heavily marketed "leaky...

Best Digestive Bitters UK

Written and medically reviewed by Dr Zeeshan Afzal (MBBS) — Medical Doctor & Medical Content Lead, Welzo Part of our digestive health guides · Shop gut health supplements Evidence-based ·...

Best Aloe Vera Supplements for Digestion UK

Written and medically reviewed by Dr Zeeshan Afzal (MBBS) — Medical Doctor & Medical Content Lead, Welzo Part of our digestive health guides · Shop gut health supplements Evidence-based ·...

Best Peppermint Oil Capsules for IBS UK

Written and medically reviewed by Dr Zeeshan Afzal (MBBS) — Medical Doctor & Medical Content Lead, Welzo Part of our digestive health guides · Shop gut health supplements Evidence-based ·...