Skip to content
Suppin
Get the app

Safety

Upper limits, combinations and interactions with medicines.

Overhead view of hands organizing three Supin bottles beside a blank weekly planner and a sage supplement organizer.
Safety7 min read

Supplements You Shouldn't Take Together, and the Ones That Pair Well

Which supplements to keep apart, like iron and calcium or iron and zinc, which pairs help each other, and the medicine interactions that matter most.

Adult hands compare Supin Multivitamin and Vitamin D3 bottles above a sunlit kitchen counter with calculator and small pill organizer.
Safety7 min read

Can You Take Too Many Vitamins? Upper Limits Explained Simply

Yes, you can take too many vitamins. What upper limits (ULs) mean, the adult limits for common nutrients, and how stacking supplements adds up.

A pharmacist discusses an amber Supin supplement bottle with a male customer at a pharmacy counter beside a plain medicine box and sealed blister pack.
Safety7 min read

Supplements and Medications: Interactions to Ask Your Pharmacist About

Which supplements can clash with common medicines: St John's wort, vitamin K and warfarin, minerals and thyroid pills or antibiotics, potassium and more.