31 Strange Causes of Headaches That Have Nothing to Do With Dehydration

Lisette Marie

13. Artificial Sweeteners: A Hidden Headache Trigger

Sugar Substitute sweetener in a packet and cup of tea on table. Photo Credit: Envato @towfiqu98

You might think you're doing your body a favor by choosing diet sodas or sugar-free snacks, but artificial sweeteners—particularly aspartame—have been linked to headaches. While the exact mechanism isn’t fully understood, research suggests that aspartame may interfere with neurotransmitters in the brain, increasing the likelihood of headaches. If you frequently consume sugar substitutes and struggle with headaches, consider eliminating them for a few weeks to see if your symptoms improve.

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13. Artificial Sweeteners: A Hidden Headache Trigger

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