So I think they are sick. The percentage of the recommended daily allowance (RDA) for zinc is based on a 15 mg RDA level for a mature adult. Amount of Histidine in Banana: How much Alanine is in Banana? Zinc Sulfate Application to Fruit Trees. Large bananas that are about 8 to 9 inches long and weigh around 135 grams have.20 milligrams of zinc. google_ad_slot = "9456429844"; Legumes like chickpeas, lentils and beans all contain substantial amounts of zinc. Amount of Vitamin A IU in Banana: How much Vitamin B6 is in Banana? If pregnant, she needs 11 milligrams per day, and she needs 12 milligrams when she's breastfeeding. Disclaimer: The information provided by Diet & Fitness Today is for general information and should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. Amount of sucrose in Banana: How much protein is in Banana? (6% DV) 0.8mg. //-->. The associated percentage of RDA is 1 %. Zinc deficiency is associated with an increased risk of gastrointestinal infections, adverse effects on the structure and function of the gastrointestinal tract, and impaired immune function (21,27–30). On average, copper was the least conductive metal – generating only .1 volts when implanted in a lemon.