When apples and bananas are combined together, it will help in boosting the iron content in the body, thereby helping in the formation of red blood cells. The vitamin C content in both the fruits is required for making new cells and clearing free radicals from your blood that might otherwise damage cells. 100 grams of honey has 0.42 mg of iron. In addition, honey also contains copper and magnesium that will help in increasing hemoglobin in the body .