Can Protein Powder cause headaches?

Protein powder should not cause headaches in most cases, unless you have an allergy or intolerance. Allergy or intolerance can cause a sinus headache. This is caused when histamine is produced in the sinuses which causes inflammation and swelling. If you suffer from a sinus headache after consuming protein powder it may be an additive or the type of protein powder used. In this case we recommend using an alternative product to supplement your protein intake.