I need to understand benefits of Zinc supplement for my wife. She has excessive lower body fat & is working hard since last 4 years to get rid of it. We tried Yasad bhasm from Baidyanath for just over a month & it's showing remarkable improvement as her lower body is getting in shape. However I am not sure about quality of that bhasm & want to buy some certified supplement instead. I need recommendation about brand and type of Zinc supplement I should buy for both of us (I also take it for general well being)