Support immune and cellular health with Nature’s Plus Quercetin Plus with Bromelain & Vitamin C. Quercetin is a beneficial flavonoid found in many fruits, vegetables and grains that has potent antioxidant properties to protect the body from free radicals. It delivers bioflavonoids that complement vitamin C usage by the body to support healthy immune system function. Bromelain is a digestive enzyme with a long history of traditional use for promoting total-body wellness. Each serving of Quercetin Plus with Bromelain & Vitamin C delivers 250 mg quercetin, 300 mg vitamin C and 100 mg bromelain to support cellular and immune health.