Im torn between two brands of Inositol powder, Designs For Health or Vital Nutrients. The Vital Nutrients powder serving size is: 1 teaspoon= 4 grams. The Designs For Health serving size is: 1/4 teaspoon= 700mg. Multiplying that by 4 gives 2800mg or 2.8 grams for every teaspoon. So, the Vital Nutrients (4g) powder is heavier than the Designs For Health (2.8g). Why is this and what does it mean? Both are pure Inositol powder (nothing else added). What is supplemetnal Inositol created from? Are there different sources? If so, what source is considered the highest quality and could this be a factor in the weight difference? I will appreciate any info regarding this topic.