@drmarks.co.uk: For anyone who's noticed bright yellow wee after taking a multivitamin: a GP explains why it happens, and when it's worth speaking to your GP. 💛 It's usually vitamin B2 (riboflavin), which has a bright yellow colour. Your body uses what it needs, and any extra that's absorbed leaves in your urine. See your GP if you see blood in your wee, if dark wee doesn't get lighter when you drink more, or if it hurts to wee. What should we explain next? Ask below 👇 Follow for more label reads and 'A GP explains' videos. Also on Instagram: @drmarks.co.uk #AGPExplains #Vitamins #HealthQuestions

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Saturday 31 October 2026 19:00:00 GMT