Calcium, phosphorus, magnesium, and iron are important minerals found in pineapple. Calcium contributes to bone and tooth hardness while phosphorus and magnesium are components of important molecules like ATP. Iron is part of hemoglobin in red blood cells and some enzymes. Dietary fiber from fruits, vegetables, grains, and beans comes in insoluble and soluble forms and aids digestion while helping reduce health risks such as obesity and cancer. Proteins are complex molecules that make up tissues and have roles as enzymes, motors, antibodies, and hormones to regulate biochemical reactions and homeostasis.