Pregnancy When Underweight: Risks and Nutrition Tips
Starting a pregnancy with a BMI under 18.5 means your body has fewer nutrient reserves. You will need to gain slightly more weight than the average person to ensure your baby gets everything they need to thrive.
Add a spoonful of peanut butter to your oatmeal or a drizzle of olive oil over your vegetables to easily boost your calorie intake without feeling overly full.
Why Extra Weight Gain is Needed
When you are underweight, your body has to work harder to support the intense demands of growing a baby.
- Goal: Gain 28 to 40 lbs total.
- Risks of inadequate gain: Higher chance of preterm birth (delivery before 37 weeks) and a low birth weight baby (< 5.5 lbs).
- Low birth weight can lead to immediate health issues for the baby, like trouble breathing or maintaining body temperature.
Strategies for Healthy Weight Gain
Gaining weight can sometimes be challenging, especially if you experience severe morning sickness or early satiety (feeling full quickly).
- Eat small, frequent meals: Aim for 5-6 smaller meals rather than 3 large ones.
- Focus on calorie-dense foods: Add healthy fats like avocados, nuts, nut butters, olive oil, and full-fat dairy to your diet.
- Drink your calories: Smoothies made with Greek yogurt, fruit, and chia seeds can be easier to manage than solid food.
- Don't skip meals: Keep high-protein snacks handy.
Frequently Asked Questions
No. Empty calories from sugary drinks and highly processed foods don't provide the vitamins and minerals your baby needs for organ development. Focus on nutrient-dense, high-calorie foods.