Haram means ‘forbidden’ in Arabic, and many of the ingredients included in popular vitamins, unfortunately, are unsuitable for Muslims.
The most common ingredients you’ll need to watch out for are gelatin and alcohol.
Gelatin is usually made from pork, which can’t be considered halal.
Some products are sourced from cows, but if the label doesn’t mention halal, it’s probably not been slaughtered in adherence to Islamic law.
Alcohol is frequently found in liquid supplements, like syrups, so it’s always important to check the label beforehand to ensure they’re okay for you to use.