Give your immune system some love with Zinc Lozenges from Windmill Natural Vitamins. Each citrus flavored lozenge delivers 30 mg zinc citrate and 60 mg vitamin C. Zinc is a mineral found throughout the body that promotes healthy immune system function and metabolism. It may help shorten the duration of seasonal woes. Vitamin C is a trusted immune health supporter. Together they can help you feel your best. Gluten free and less than 1 gram of sugar. Gluten Free. A product that has an unqualified independent third-party certification, or carries an on-pack statement relating to the finished product being gluten-free. See how we make shopping for wellness even easier. Learn more about our wellness icons.