The detailed knowledge of nutrition levels in the first trimester can pave a way to personalized nutrition for better outcomes.

This analysis was carried out for exploring the actual nutrition of pregnant females in the 1^st trimester as the basis for a personalized approach for the management of pregnancy. 

By examining the frequency of food intake using the food weighing method, the actual nutrition during pregnancy was examined. On the basis of data for a period of 1 week, estimation of the average daily indicators was done. Overall, 417 females were surveyed.

With the aid of Individual Diet software, characterization of the diet was done for identifying the deficiencies of minerals  and vitamins most essential for the reproductive system. For quantifying the results, descriptive statistics methodology were used.

Energy value of daily diet of pregnant females averaged 2294.3 ± 487.21 kcal, that is within the normal values (2070.0–3507.5 kcal/day), the surplus being witnessed in almost a third of respondents (28.3%, n = 118). Diet assessment revealed that most of the participants had a deficiency in microelements, macroelements and vitamins most crucial for the reproductive system. On average, the pregnant females consumed 155.0 ± 0.52 μg/day of folic acid with food, no female receiving sufficient folic acid for preventing fetus congenital malformations.

The average dietary consumption of iodine was about 70 μg/day. Hence, emphasizing on the suggestions for pregnant females, an iodine-deficient diet was noted in 90% of respondents. An adequate amount of iodine-containing products was consumed by only 5 females (1.2%). As noted, pregnant females consumed about 5.9 ± 2.10 mg/day of zinc, with the suggested intake level of greater than 12.5 mg/day not reported in any female.

Deficiency of iron was noted in about 289 respondents (69%). The findings of survey showed that more than half of the respondents (64.5%, n= 269) did not have sufficient consumption of selenium. In half of the pregnant females, deficiency of calcium was registered (50%, n= 210). Only every tenth female (10%, n= 48) consumed an adequate amount of calcium-containing foods. Poor magnesium intake was rare and was noted in only one-third of respondents (32%, n = 135).

The data procured suggested the requirement for studying the individual level of actually consumed nutrients and vitamins. This can be the basis for the personalized choice of drugs and efficient microelement dosing approach.