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# It is recommended that people should have $1g$ of calcium everyday. How many milligrams of calcium is that?

Last updated date: 20th Jun 2024
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Hint: In this question it is given that people should have $1g$ of calcium everyday. We need to determine how many milligram of calcium is that. We know that $mg = g \times 1000$. Hence, we will substitute the value of the gram and convert it into milligram.

Complete step-by-step solution:
We need to determine how many milligram of calcium does $1g$ calcium has.
We know that, $mg = g \times 1000$
$mg = 1g \times 1000$
$mg = 1000$
Hence, one gram is equal to thousand milligrams, i.e., $1g = 1000mg$.

Note: In other hand, one milligram is equal to one by thousand, i.e., $1\,g = \dfrac{1}{{1000}}\,mg$. A gram is a unit of mass in the international system of units. The definition of the gram is based on the kilogram, where a gram is one thousandth of a kilogram, the SI base unit of mass. The gram is today the most widely used unit of measurement for non-liquid ingredients in cooking and grocery shopping worldwide. Most standards and legal requirements for nutrition labels on food products require relative contents to be stated per $100g$ of the product, such that the resulting figure can also be read as percentage by weight.

A milligram is a unit of weight and mass that is based on the SI base unit of mass, the kilogram. Milligram percent is a traditional symbol used to denote a unit of measure of concentration. Special studies conducted about the human body revealed it will usually absorb up to about $300mg$ of caffeine at a given time. About $4$ normal cups. Additional amounts are just cast off, providing no further stimulation. Also, the human body dissipates $20\%$ of the caffeine in the system each hour.