10. Artificial Sweeteners
Sadly, artificial sweeteners are no better for your mood that sugar. Aspartame especially has been linked to a reduction in the feel-good neurotransmitter serotonin.
When serotonin in blocked in the brain, it leads to depression, but also headaches and insomnia, which can further impact your mental stability. No artificial sugar substitute is without risk.
But since we all need a little sweetness in our lives, we recommend honey or Stevia for boosting your morning beverage without leading to a crash later.