The relationship between tic disorder and diet is not fully established, but clinical reports indicate that caffeine (cola, energy drinks, chocolate) stimulates the nervous system and worsens tics. Research also suggests that processed foods containing artificial colorings and preservatives can increase hyperactivity and impulsivity, warranting caution. Magnesium (found in nuts, leafy greens, and whole grains) is a mineral that suppresses neuromuscular excitation, and deficiency may worsen tics. Omega-3 fatty acids (found in oily fish) contribute to nerve membrane stabilization. High-sugar snacks can cause rapid blood glucose spikes and crashes that destabilize the nervous system, so replacing them with complex carbohydrates is advisable.