ITV doctor Amir Khan warned that over-the-counter supplements can interfere with prescription medications and urged patients to inform their doctors about supplement use.

Dr Amir Khan, an ITV medic, warned in an Instagram video that supplements like St John's wort, turmeric, magnesium, calcium, and vitamin K can interfere with prescription medications including antidepressants, the contraceptive pill, blood thinners like warfarin, antibiotics, thyroid medication, levothyroxine, and statins, and advised patients taking regular medication to consult their GP about supplement use.