Pineapples are low in calories but boast an impressive nutrient profile. Just 1 cup 165 grams of pineapple chunks contains the following nutrients Calories. Trace Elements What Are The Effects Of Trace Minerals On Plant Growth Plant Growth Trace Minerals Plant Nutrients The toxicity of minerals depends essentially on the amount absorbed by the body. . The following are occasionally referred to as essential minerals or trace elements but there is only limited circumstantial evidence of their biological necessity.