Ensure is generally safe for pregnant women and can help fill nutritional gaps, but it’s not a prenatal-specific product. The manufacturer confirms that pregnant and lactating women can drink Ensure to help meet their nutritional needs, though they recommend consulting a doctor before having more than one serving per day. Whether it’s a good choice for you depends on your specific situation, particularly how well you’re eating, whether you’re struggling with nausea, and whether you’re managing blood sugar concerns like gestational diabetes.
What One Serving Actually Provides
A standard 8-ounce bottle of Ensure Original packs 250 calories, 9 grams of protein, and 23 grams of sugar. It also delivers 25% of the daily value of vitamin A, 25% of the daily value of vitamin D (5 micrograms), and 25% of the daily value of folic acid (60 micrograms).
Those numbers sound helpful, but context matters. During pregnancy, you need about 600 micrograms of folic acid daily. One Ensure gives you just 60 micrograms, or 10% of what your prenatal vitamin likely covers. The same goes for iron, calcium, and DHA, all critical during pregnancy. Ensure was designed as a general adult nutrition supplement, not a prenatal one. It won’t replace your prenatal vitamin, and it’s not formulated to hit pregnancy-specific targets for nutrients like choline or omega-3 fatty acids.
When It Can Genuinely Help
The most practical use for Ensure during pregnancy is bridging calorie and nutrient gaps when eating full meals feels impossible. First-trimester nausea, food aversions, or simply being too exhausted to cook can make it hard to get enough calories. Sipping a shake is often easier than forcing down a plate of food, and 250 calories with 9 grams of protein is better than skipping a meal entirely.
For women with severe nausea and vomiting (hyperemesis gravidarum), liquid nutrition becomes even more important. Research from the University of Virginia School of Medicine shows that when standard treatments like anti-nausea medications and dietary changes aren’t enough, liquid nutritional formulas can provide relief from vomiting, help women avoid hospitalization, and lead to positive outcomes for the baby. In these cases, doctors sometimes recommend products like Ensure as part of a broader nutrition plan. However, clinicians note that depending on how much formula a patient drinks, she may still need additional supplementation to meet the full daily requirements for pregnancy. A prenatal vitamin remains essential.
Ensure can also help women who are underweight or struggling to gain enough during pregnancy. Adding a serving between meals is a simple way to increase daily calorie intake without requiring large portions at mealtimes.
The Sugar Content Is Worth Watching
At 23 grams of sugar per bottle, Ensure Original is not a low-sugar drink. That’s roughly the same as a small glass of orange juice. For most pregnant women, this amount in a single serving isn’t a problem. But if you’ve been diagnosed with gestational diabetes or are at risk for it, you need to think more carefully.
Blood sugar after meals is primarily driven by carbohydrate intake, and fast-absorbing carbohydrates (those with a high glycemic index above 70) cause sharper spikes. Ensure contains a mix of sugars and corn-based carbohydrates that absorb relatively quickly. For women managing gestational diabetes, dietary guidelines recommend that carbohydrates come mainly from high-fiber, low-glycemic sources like vegetables, legumes, and whole grains. A drink with 23 grams of sugar doesn’t fit that profile well.
If you have gestational diabetes or borderline blood sugar, a lower-sugar option like Ensure Max Protein (which has significantly less sugar and more protein per serving) may be a better fit. Or consider other brands specifically designed with lower glycemic impact. Either way, testing your blood sugar after drinking a shake will tell you how your body handles it.
How to Use It Wisely During Pregnancy
Think of Ensure as a backup, not a foundation. It works best as a supplement on days when you can’t eat enough real food, not as a daily meal replacement. Whole foods provide fiber, phytonutrients, and a broader range of micronutrients that no shake can fully replicate.
A few practical guidelines:
- Keep taking your prenatal vitamin. Ensure doesn’t provide enough folic acid, iron, or DHA to cover pregnancy needs on its own.
- Stick to one serving per day unless directed otherwise. The manufacturer specifically flags this threshold, likely because higher intake could push certain vitamins (like vitamin A, which can be harmful in excess) above safe levels when combined with a prenatal supplement.
- Pair it with protein or fiber when possible. Adding a handful of nuts or drinking it alongside whole-grain toast slows sugar absorption and makes the nutrition more complete.
- Consider the timing. If nausea is worst in the morning, keeping a room-temperature bottle by your bed and sipping before getting up can help you get calories in early.
Abbott Nutrition, which makes Ensure, also produces Similac Mom, a product specifically formulated for pregnant and breastfeeding women. If you’re planning to rely on a nutritional shake regularly throughout pregnancy rather than occasionally, a prenatal-specific formula is a better match for your needs.