Guidelines recommend no additional calories in the first trimester, about 340 extra per day in the second trimester, and about 450 extra per day in the third trimester. 'Eating for two' is a myth — you need quality nutrition, not double portions.

Intentional weight loss during pregnancy is generally not recommended. Even overweight women are advised to gain some weight (11-20 lbs). Focus on nutritious food choices rather than calorie restriction. Consult your healthcare provider for personalized guidance.

Beyond calories, focus on folate (600 mcg), iron (27 mg), calcium (1000 mg), DHA omega-3 fatty acids, and adequate protein (75-100g/day). A prenatal vitamin covers micronutrient needs, but whole food sources of protein, iron, and calcium are essential.