Weight
Product weight excluding packaging. It is indicated exclusively for powders (see "Dosage form"). Knowing the daily rate, you can calculate how many days this or that package will last.
Servings
The number of individual servings contained in the package of the supplement. It corresponds to the weight or number of tablets/capsules divided by the size of one standard serving. Of course, if you deviate from this dosage, the number of servings will change accordingly.
Dosage
The amount of powder corresponding to the standard portion of the supplement. With this data, you can estimate the total number of servings if this information is not provided by the manufacturer.
The standard dosage is indicated per "average" person. In some cases (for example, with a very small or very large body weight), deviations from the indicated dosage are allowed, but only on the recommendation of a specialist.