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It's made a noticeable difference in my mood and energy

Vitamins After Gastric Bypass - Your Guide to Gastric Bypass Malabsorption Gastric bypass surgery is a minimally invasive bariatric procedure that permanently changes the digestive system in an effort to support weight loss

The results showed that vitamin B complex treatment reduced proinflammatory cytokine expression while increasing anti-inflammatory cytokine expression, and this led to neuroinflammation resolution

I think we can safely say the overwhelming answer would be (b)

Yang, The Risks and Benefits of Long-term Use of Proton Pump Inhibitors: Expert Review and Best Practice Advice From the American Gastroenterological Association