Calorie requirement in first trimester =O
2 nd trimester = 340kcal / day
3 rd trimester = 452 kcal/ day
It’s an update in Obsgyn
Trimester wise there is no problem. My doubt is on an average if Trimesters are not mentioned, 300 Kcal/day is recommended or 350 KCal/ day (as given in PSM pearl)