Biomolecules

Convulsions occur when there is an issue with the normal functioning of the nervous system.
Vitamin that prevents convulsions: Pyridoxine (Vitamin B B6 ) is required for the synthesis of neurotransmitters such as GABA.
Deficiency of Vitamin B6⟶ decreased GABA formation → neuronal hyperexcitability ⟶ convulsions.
Now let's check the source:
Vitamin B6 (Pyridoxine) is found in cereals, pulses, nuts, and non-vegetarian foods.