The demand of zinc for a healthy person is very low. If someone intake excessive zinc in long-term, it might lead to aggravate iron deficiency anemia.
Furthermore, too much zinc also causing the many heart related diseases, such as coronary heart disease, atherosclerosis and much more. Some of the symptoms of excessive zinc intake are:
1. Zinc poisoning,
5. Fatigue or even
6. Sudden death!
Therefore, remember not to intake too much zinc in your daily meals.
PS: Zinc's figure thanks to health.learninginfo.