Plant-based supplements are far superior to laboratory synthetics.
Somewhat contrary to popular belief, what you leave out of your diet is of paramount importance – as much so as what you add into your diet.
The golden rule of nutrition is as follows: As long as you are getting enough calories from a broad spectrum of plant-based foods and there is not a pre-existing chemistry condition, you will get enough of the micronutrients you need from that food.
Your body definitely needs zinc. In optimal circumstances, you would get every nutrient that you need from food. But given the generally poor quality of food available to us today, our bodies have nutritional deficiencies.