Pregnancy Nutrition Calculator

This calculator estimates how much energy a pregnancy needs each day, and what the published macronutrient figures come to for one body. Enter age, height, pre-pregnancy weight, activity level and trimester, and it returns the Estimated Energy Requirement from the Dietary Reference Intakes plus that report's trimester increment, alongside the protein, carbohydrate, fat, fibre and total water targets. The increments are nothing in the first trimester, 340 calories a day in the second and 452 in the third, added to the same equation they were published against, so the figure matches the pregnancy calorie calculator here. Vitamins and minerals are left out on purpose, because they are a published table rather than a calculation.

Units
Under 19 the Dietary Reference Intakes use their adolescent equation, which is a different equation rather than the adult one with another coefficient.
In inches, or in centimetres if the units above are metric. 5 ft 5 in is 65 inches or 165 centimetres.
In pounds, or in kilograms if the units above are metric. What you weighed before the pregnancy, not now. Protein and energy are both worked from it.
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