Best Protein Drinks for Pregnancy and Nursing
Pregnancy changes everything about your nutritional needs. Protein requirements increase significantly to support your baby’s growth, your expanding blood volume, the placenta, and your own tissue changes. Most pregnant women need 25-30 additional grams of protein per day beyond their pre-pregnancy intake, and nursing mothers need even more to support milk production.
Getting that extra protein through food alone is ideal, but real life intervenes. Morning sickness can make whole food protein unappealing. Fatigue makes meal prep feel impossible. And sometimes you just need a quick, convenient source of quality protein that you can grab and go.
The challenge is finding protein drinks that are safe during pregnancy and nursing. Not all ingredients commonly found in protein drinks are appropriate for expecting or breastfeeding mothers. Caffeine content, artificial sweeteners, herbal additives, and protein source quality all require extra scrutiny.
We evaluated dozens of options and selected eight that meet our strict criteria for pregnancy and nursing safety. We consulted ACOG (American College of Obstetricians and Gynecologists) guidelines and current nutritional research to inform our recommendations.
Important Medical Note: This article is for informational purposes only. Every pregnancy is different, and your individual health circumstances may affect which products are appropriate for you. Always consult your OB-GYN, midwife, or registered dietitian before adding any supplement to your pregnancy or nursing diet. This is especially important if you have gestational diabetes, preeclampsia, or other pregnancy complications.
Key Takeaways
– Pregnant women need roughly 75-100g of protein daily; nursing mothers need about 65-80g
– Collagen peptides offer unique benefits during pregnancy: skin elasticity, joint support, and tissue repair
– ACOG considers up to 200mg of caffeine per day safe during pregnancy; PROX contains exactly 200mg
– Look for short ingredient lists and avoid proprietary blends, herbal extracts, and excessive artificial additives
– Whey protein, collagen, and milk-based proteins are generally considered safe during pregnancy
– Morning sickness often makes light, sparkling formats more tolerable than thick, creamy shakes
Protein Needs During Pregnancy and Nursing
First Trimester (Weeks 1-12)
During the first trimester, your protein needs are close to your pre-pregnancy baseline. The recommended daily intake is about 0.5g per pound of body weight, or roughly 60-70g for most women. The challenge is not the amount but the ability to keep food down. Morning sickness affects up to 80 percent of pregnant women, and protein-rich foods are often the hardest to tolerate.
Light, cold, and fizzy beverages tend to be better tolerated during morning sickness than heavy, creamy ones. This is one reason why sparkling protein drinks may be more practical during the first trimester than traditional protein shakes.
Second and Third Trimesters (Weeks 13-40)
Protein needs increase to approximately 75-100g per day as your baby’s growth accelerates. The third trimester is particularly protein-demanding because your baby is rapidly building muscle, organs, and connective tissue.
This is the period where supplemental protein becomes most valuable. Even women with excellent diets often find it challenging to consistently hit 100g of protein daily, especially as the baby compresses the stomach and reduces appetite in the final weeks.
Nursing (Postpartum)
Breastfeeding requires approximately 500 additional calories per day, and a significant portion of those calories should come from protein. Nursing mothers need about 65-80g of protein daily to support milk production and their own recovery.
Collagen protein is particularly interesting during the postpartum period. The amino acids in collagen support skin recovery (hello, stretched abdominal skin), joint healing after the ligament laxity of pregnancy, and gut health that may have been disrupted during pregnancy.
What to Look for in Pregnancy-Safe Protein Drinks
Clean Ingredient Lists
Short ingredient lists with recognizable components are the gold standard during pregnancy. You should be able to identify every ingredient on the label. Avoid products with long lists of chemical-sounding additives.
Caffeine Content
ACOG considers up to 200mg of caffeine per day safe during pregnancy. This means products with moderate caffeine are not off-limits but must be counted against your daily total. If you drink coffee or tea, you need to factor those into the equation.
A caffeine-free protein drink is the safest default. However, for women who have already cleared moderate caffeine intake with their provider, a drink with natural caffeine can be a convenient way to manage the energy demands of pregnancy without additional coffee.
Protein Source Quality
Whey protein isolate and whey protein concentrate are well-studied and considered safe during pregnancy. They provide complete amino acid profiles and are easily digestible.
Collagen peptides are gaining popularity among pregnant women for good reason. Glycine, the primary amino acid in collagen, supports fetal development, placental function, and maternal tissue expansion. Some research suggests that glycine requirements increase substantially during pregnancy but are often inadequately met through diet alone.
Milk protein and casein are safe and provide sustained amino acid release.
Plant proteins (pea, rice, hemp) are safe but may require larger servings to match the amino acid profile of dairy-based proteins.
Ingredients to Avoid
Herbal adaptogens like ashwagandha, ginseng, and rhodiola have insufficient safety data during pregnancy. Many protein drinks marketed for focus or stress include these. Skip them.
High-dose artificial sweeteners in amounts exceeding normal dietary exposure should be consumed in moderation. Moderate amounts of sucralose, stevia, and monk fruit are generally considered safe during pregnancy.
Protein blends with proprietary formulas where you cannot verify what is in the product.
The 8 Best Protein Drinks for Pregnancy and Nursing
1. Fairlife Core Power (26g Protein)
Core Power earns the top spot for pregnancy specifically because of its simplicity. The sole protein source is ultra-filtered milk, making the ingredient list about as clean and recognizable as possible. Each bottle provides 26g of protein, 170 calories, and zero caffeine.
For pregnant women dealing with food aversions, Core Power tastes like enhanced chocolate milk, which tends to be one of the more tolerable flavors during morning sickness. The ultra-filtered milk process also reduces lactose, which helps with the increased lactose sensitivity some women experience during pregnancy.
Protein: 26g | Calories: 170 | Sugar: 5g | Caffeine: 0mg
Pregnancy advantage: Ultra-simple ingredient list. Tastes like real chocolate milk. Zero caffeine. Reduced lactose.
2. Orgain Organic Protein Shake
Orgain’s organic certification and plant-based formula make it a strong choice for pregnant women who want maximum ingredient transparency. Each bottle provides 16g of protein from organic pea, brown rice, and chia seed proteins with 150 calories and no added sugar.
The USDA Organic certification means every ingredient meets organic standards, reducing exposure to pesticides and synthetic additives. The plant-based formula is also a good option for pregnant women experiencing dairy aversion, which is common.
Protein: 16g | Calories: 150 | Sugar: 0g added | Caffeine: 0mg
Pregnancy advantage: USDA Organic, plant-based, clean ingredient list, no caffeine
3. Iconic Protein Drink
Iconic delivers 20g of protein from grass-fed milk in 130 calories with natural sweeteners (monk fruit and stevia). The grass-fed milk protein source means better fatty acid profiles and no exposure to hormones or antibiotics used in conventional dairy farming.
The clean sweetener profile is noteworthy. Some pregnant women are cautious about artificial sweeteners, and Iconic avoids them entirely. Vanilla Bean and Chocolate Truffle are the best-tasting flavors.
Protein: 20g | Calories: 130 | Sugar: 3g | Caffeine: 0mg
Pregnancy advantage: Grass-fed dairy, natural sweeteners only, clean ingredients
4. PROX Sparkling Protein Drink
PROX offers a unique combination of benefits for pregnancy and nursing: collagen peptides (for skin elasticity, joint support, and tissue repair) paired with whey isolate (for complete amino acid coverage) in a sparkling format that is often more tolerable than creamy shakes during morning sickness.
Caffeine note for pregnant women: PROX contains 200mg of natural caffeine from green tea and green coffee extract. This is exactly at the ACOG daily limit of 200mg. If you choose PROX during pregnancy, it should be your only caffeine source for the day, meaning no additional coffee, tea, or chocolate. Many women find this an acceptable tradeoff for the convenience of getting protein, collagen, and their daily caffeine allowance in one drink.
The collagen component is particularly valuable during pregnancy. The glycine in collagen supports placental development, and the proline and hydroxyproline support skin and connective tissue as your body stretches and expands. During nursing, collagen supports recovery and helps with postpartum skin healing.
L-theanine, the other functional ingredient, has been used safely in Japanese culture for centuries through green tea consumption and is not known to cause issues during pregnancy, though data is limited.
Protein: 20g | Calories: 90 | Sugar: 0g | Caffeine: 200mg (natural)
Pregnancy advantage: Collagen for skin and joints, sparkling format for morning sickness, lowest calorie option. Caffeine must be counted against ACOG daily limit.
5. OWYN Protein Shake
OWYN (Only What You Need) provides 20g of plant protein from pea and pumpkin seed with 180 calories and zero sugar. It is free from the top nine allergens, making it one of the safest options for pregnant women with food allergies or sensitivities.
Food sensitivities can change during pregnancy, so an allergen-free option provides peace of mind. The ingredient list is transparent and concise.
Protein: 20g | Calories: 180 | Sugar: 0g | Caffeine: 0mg
Pregnancy advantage: Free from top 9 allergens, clean ingredients, plant-based
6. Ensure Max Protein
Ensure Max Protein delivers 30g of protein with 150 calories and 1g of sugar, plus a comprehensive vitamin and mineral profile. The micronutrient content is the differentiator, as it includes folic acid, iron, calcium, and vitamin D, all of which are critical during pregnancy.
This is not specifically formulated for pregnancy, so it should not replace a prenatal vitamin, but the micronutrient profile is a beneficial addition to the protein.
Protein: 30g | Calories: 150 | Sugar: 1g | Caffeine: 0mg
Pregnancy advantage: 23 vitamins and minerals including pregnancy-critical nutrients
7. Premier Protein Shake
Premier is widely available and affordable, making it practical for the increased protein demands of pregnancy and nursing. At 30g of protein per bottle with 160 calories and 1g of sugar, it provides strong macros at a low price point.
The wide flavor range can be helpful when pregnancy food aversions make certain flavors intolerable. If chocolate makes you nauseous, try Caramel, or Vanilla, or Cinnamon Roll. Having options matters during pregnancy.
Protein: 30g | Calories: 160 | Sugar: 1g | Caffeine: 0mg
Pregnancy advantage: Affordable, wide flavor range for managing aversions
8. Evolve Plant-Based Protein Shake
Evolve provides 20g of organic pea protein in 130 calories with no artificial ingredients. USDA Organic and free from dairy, soy, and gluten. It is a solid plant-based option for pregnant women who want or need to avoid dairy.
The taste is mild and clean, which can be an advantage when strong flavors trigger nausea. Berry Medley is the flavor most commonly recommended by moms who used it during pregnancy.
Protein: 20g | Calories: 130 | Sugar: 3g | Caffeine: 0mg
Pregnancy advantage: Organic, dairy-free, mild taste, allergen-friendly
Comparison Table: Pregnancy-Safe Protein Drinks
| Product | Protein | Calories | Sugar | Caffeine | Protein Source | Key Benefit |
|———|———|———-|——-|———-|—————|————-|
| Fairlife Core Power | 26g | 170 | 5g | 0mg | Ultra-filtered milk | Simplest ingredients |
| Orgain Organic | 16g | 150 | 0g added | 0mg | Pea, rice, chia | USDA Organic |
| Iconic | 20g | 130 | 3g | 0mg | Grass-fed milk | Natural sweeteners |
| PROX | 20g | 90 | 0g | 200mg | Whey isolate + collagen | Collagen for skin/joints |
| OWYN | 20g | 180 | 0g | 0mg | Pea, pumpkin seed | Allergen-free |
| Ensure Max Protein | 30g | 150 | 1g | 0mg | Milk protein, soy | Vitamins/minerals |
| Premier Protein | 30g | 160 | 1g | 0mg | Milk protein concentrate | Affordable, many flavors |
| Evolve | 20g | 130 | 3g | 0mg | Pea protein | Organic, mild taste |
Collagen + whey isolate: dual-source protein for pregnancy and recovery
PROX delivers collagen peptides for skin, joints, and tissue repair alongside whey isolate for complete amino acid coverage. 90 calories, zero sugar. Note: Contains 200mg caffeine. Count toward your ACOG daily limit.
Why Collagen Protein Deserves Special Attention During Pregnancy
Collagen is the most abundant protein in the human body. During pregnancy, demand for collagen skyrockets because it is a primary structural component of the tissues undergoing the most change.
Skin Elasticity and Stretch Mark Prevention
As your belly, breasts, and hips expand during pregnancy, your skin must stretch to accommodate. Collagen provides the structural framework for skin elasticity. While no supplement can guarantee stretch mark prevention, providing your body with the raw materials for collagen production gives your skin the best possible chance at maintaining elasticity under stress.
The glycine and proline in collagen peptides are the specific amino acids your body uses to produce its own collagen. Supplementing with collagen peptides increases the circulating levels of these amino acids, making them readily available for skin repair and maintenance.
Joint and Ligament Support
Pregnancy hormones, particularly relaxin, loosen your ligaments to prepare for delivery. This is necessary but can cause joint pain, pelvic instability, and increased risk of injury. Collagen peptides provide the amino acids that support ligament and joint tissue integrity, potentially reducing discomfort.
Gut Health
Many pregnant women experience digestive issues including heartburn, constipation, and general gut discomfort. The glycine in collagen supports gut lining integrity and has been shown to support digestive function. While not a cure for pregnancy-related digestive issues, it may provide some relief.
Postpartum Recovery
After delivery, your body has significant tissue repair to perform. Collagen provides the building blocks for healing surgical sites (C-section), repairing stretched abdominal tissue, and restoring skin elasticity. Continuing collagen supplementation through the postpartum period supports this recovery process.
Managing Morning Sickness: Why Format Matters
First-trimester nausea is one of the biggest barriers to adequate protein intake during pregnancy. The format of your protein drink can make or break whether you can actually keep it down.
Thick, creamy shakes tend to trigger nausea more frequently because of their dense texture and heavy mouthfeel. They can also leave a lingering taste that perpetuates nausea.
Cold, sparkling, or light-bodied drinks are generally better tolerated. The carbonation in sparkling drinks can actually help settle nausea for some women, which is why ginger ale has been a traditional morning sickness remedy.
Fruity flavors like strawberry, mango, and berry tend to be better tolerated than chocolate or vanilla during morning sickness. If your go-to flavor suddenly triggers nausea, switch to something lighter and fruitier.
This is one of the reasons a sparkling protein drink like PROX (available in Strawberry Lemonade, Mango Passionfruit, and Mixed Berry) can work well during pregnancy. The light, carbonated format with fruity flavors is inherently more nausea-friendly than a thick chocolate shake.
Protein that works with your pregnancy, not against it
PROX offers collagen for skin and joints, whey isolate for complete nutrition, and a sparkling format that is easier on queasy stomachs. 20g protein, 90 calories, zero sugar.
Frequently Asked Questions
Are protein drinks safe during pregnancy?
Yes, most protein drinks made with standard protein sources (whey, casein, collagen, pea protein) are safe during pregnancy. The protein itself is simply a concentrated form of protein found in food. The concerns arise from other ingredients some products contain, such as herbal adaptogens, excessive stimulants, or proprietary blends. Choose products with clean ingredient lists, verify the caffeine content against ACOG guidelines (200mg max daily), and consult your OB-GYN if you have any concerns.
How much protein do I need while pregnant?
Most pregnant women need 75-100g of protein per day, which is about 25-30g more than pre-pregnancy requirements. In the third trimester, some experts recommend the higher end of this range. Nursing mothers need about 65-80g daily. These are general guidelines, and your specific needs depend on your pre-pregnancy weight, activity level, and whether you are carrying multiples. Your healthcare provider can give you a personalized recommendation.
Is collagen protein safe during pregnancy?
Collagen peptides are generally considered safe during pregnancy. Collagen is a protein your body naturally produces and is abundant in foods like bone broth, chicken skin, and fish. Supplemental collagen peptides provide the same amino acids (primarily glycine, proline, and hydroxyproline) in a more concentrated and convenient form. Glycine is particularly important during pregnancy as it supports fetal development and placental function. As with any supplement, discuss it with your healthcare provider.
Can I have caffeine during pregnancy?
ACOG considers up to 200mg of caffeine per day safe during pregnancy. This is roughly equivalent to one 12-oz cup of coffee or one can of PROX. If you consume a caffeinated protein drink, count it against your daily caffeine total and reduce or eliminate other caffeine sources. Some women choose to avoid caffeine entirely during pregnancy as a precautionary measure, which is also a valid choice. Discuss your caffeine intake with your provider.
What protein drinks help with morning sickness?
Light, cold, and carbonated protein drinks tend to be better tolerated during morning sickness than thick, creamy shakes. Fruity flavors generally work better than chocolate or vanilla when you are feeling nauseous. Sparkling protein drinks, like PROX, combine carbonation with fruity flavors in a light format. Sipping slowly and consuming small amounts at a time can also help. Some women find that having a protein drink first thing in the morning, even before getting out of bed, helps prevent the worst of morning sickness.
Disclosure: Protein Drink Guide is an independent review site. Some links in this article are affiliate links, meaning we may earn a commission if you purchase through them at no additional cost to you. Our rankings are based on objective criteria including ingredient safety, pregnancy-appropriateness, macros, and taste. PROX is a featured partner. This article is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before adding supplements to your pregnancy or nursing diet. All opinions are our own.