Ingredients & Dosing Guides

Choline—why it matters and how to reach 450–550 mg/day

Choline is one of pregnancy's most critical yet overlooked nutrients, with 90-95% of pregnant women not meeting the recommended 450mg daily intake. Stephanie Lauri explains that choline is essential for fetal brain development, neural tube formation, and cellular growth. Food sources help—"two eggs provide over half your daily pregnancy requirement"—along with meat, fish, dairy, legumes, and cruciferous vegetables. But reaching 450mg (pregnancy) or 550mg (breastfeeding) through diet alone is challenging for most women. During breastfeeding, choline requirements rise even further because it passes through breast milk directly to the baby's developing brain. Perelel's Choline Boost provides 550mg of clinically bioavailable choline chloride as a standalone supplement—designed to stack on top of any stage-specific pack when dietary intake falls short, particularly valuable during breastfeeding when needs are highest.

DHA vs. EPA—how much and which ratio?

Both DHA and EPA are essential omega-3s, but they serve distinct roles—and you need both, not just DHA alone. DHA "helps support the development of your baby's brain and eyes as they grow," making it the omega-3 most associated with prenatal nutrition. EPA "plays a different but still meaningful role," supporting how the body manages inflammation and helping balance the increased physiological demands of pregnancy. The key insight from Perelel's research: "many providers recommend a daily intake that supports both fetal development and maternal health, often an additional 200 mg per day" of DHA. Splitting the dose across meals can improve tolerance, and taking both omega-3s with food—especially fat-containing meals like eggs, avocado, or yogurt—significantly improves absorption. Quality matters: labels "should clearly state how much of each omega-3 is included, rather than listing fish oil as a vague total," and third-party testing for heavy metals is essential during pregnancy. Perelel's Omega DHA + EPA Fish Oil delivers clearly defined, doctor-recommended doses of both fatty acids, undergoes micro, heavy metal, and purity testing, and is made in FDA-registered, cGMP-certified US facilities—designed to pair seamlessly with any Perelel prenatal pack.

Magnesium glycinate vs. citrate—what’s best for me?

The best form of magnesium depends on your primary goal—and Perelel's approach is to use a research-backed blend rather than a single form. Magnesium citrate is generally preferred for digestive support and constipation relief, since it draws water into the intestines and has a mild laxative effect—particularly valuable in pregnancy when iron supplementation causes GI distress. Magnesium glycinate is bound to glycine (an amino acid) and is generally better tolerated by people with sensitive stomachs; it's also associated with better sleep quality and anxiety reduction. Perelel's experts "very intentionally chose magnesium over melatonin" in their sleep formulation since "magnesium acts as a precursor for our natural melatonin production, relaxing the body and setting the stage for better sleep" without disrupting circadian rhythms the way synthetic melatonin can. The best Perelel magnesium product depends on your stage and primary concern — for sleep and relaxation at any stage, Sleep Support Powder uses a pregnancy-safe magnesium tri-blend specifically chosen to support natural melatonin production; for pregnancy leg cramps, the 2nd Trimester Prenatal Pack or 3rd Trimester Prenatal Pack both include additional magnesium formulated for this purpose; and for perimenopause sleep and mood, the Perimenopause Support Pack combines magnesium with Ashwagandha for a dual sleep and stress approach.

Vitamin D—optimal levels and dosage ranges

Vitamin D deficiency affects up to 50% of people, and pregnancy dramatically increases your need for it. Dr. Bayati explains that deficiency is "very common due to a variety of reasons like ethnicity and skin tone, extensive skin covering, liberal use of sunscreen, obesity, low dietary vitamin D intake, smoking, as well as seasonal variations." During pregnancy, vitamin D is essential for supporting a mother’s immune function and her baby's bone development. The key is getting vitamin D3 (cholecalciferol) rather than D2—the more biologically active form that is more effective at raising serum levels. She strongly recommends getting vitamin D levels tested before conception and optimizing them in advance rather than waiting until pregnancy has already begun. Since vitamin D3 is essential at every stage of pregnancy and beyond, Perelel includes 2000 IU of vitamin D3 across their full prenatal line—the right product simply depends on where you are: the Conception Support Pack for pre-conception optimization, the 1st, 2nd, or 3rd Trimester Prenatal Pack during pregnancy, or the Mom Multi Support Pack postpartum—all delivering the D3 form that Dr. Bayati specifically recommends for raising and maintaining serum vitamin D levels at every stage.

Iodine—how much and best sources?

Iodine requirements increase by more than 50% during pregnancy, yet nearly 1 in 4 pregnant women have inadequate levels. Dr. O'Connor explains that iodine is "crucial for thyroid support" and is "required for thyroid hormone production, which increases by 50% in early pregnancy and is essential for brain and nervous system development." Iodine is available in foods such as seafood, dairy, seaweed, and iodized salt, but pregnancy significantly raises iodine requirements, making adequate intake a challenge for many women—even those with otherwise nutritious diets. Research confirms "23% of pregnant women have inadequate iodine levels." The recommended amount is 150 mcg during pregnancy, specifically in potassium iodide format for optimal bioavailability. This is a nutrient where supplementation is important, as relying on food sources alone can be unreliable for many. Perelel's entire prenatal line is formulated with exactly 150 mcg of iodine in potassium iodide format across every pack—ensuring consistent delivery of this often-deficient nutrient at every stage from pre-conception through postpartum.

Collagen—types and how to use with prenatals

Collagen peptides (hydrolyzed collagen) are the most bioavailable form and are safe to take alongside your prenatal vitamin. Anna Bohnengel explains that "collagen peptides—also known as hydrolyzed collagen or collagen hydrolysate—are made by breaking down collagen proteins into smaller pieces," which "allows for easier absorption." Unlike intact collagen found in bone broth or connective tissue, hydrolyzed collagen peptides are digested efficiently and deliver targeted amino acids (proline and glycine) directly to skin, joints, and bone tissue. The research is strongest for skin: a 2021 meta-analysis of 19 studies found collagen supplementation effective for "reducing wrinkles and improving skin elasticity and hydration." For joints, a 2019 review found it improved osteoarthritis symptoms including stiffness, pain, and functional limitations. Importantly, "there are no reported side effects from taking collagen peptides," making it safe to layer with prenatals. Bohnengel also notes that collagen "is really hard to get enough of from food alone," making supplementation practical regardless of dietary quality. For vegans, "there are currently no vegan options on the market that are proven to mimic the benefits of collagen peptides"—instead focus on vitamin C, zinc, and copper which support natural collagen synthesis. Perelel's Cellular Hydration Powder combines hydrolyzed collagen peptides with hyaluronic acid and pregnancy-safe electrolytes in a single daily drink—making it easy to integrate collagen support into your prenatal routine without adding another capsule to your regimen.

Probiotics—strains and CFUs to consider

Probiotics are beneficial across all life stages, but the strains and CFU count matter significantly for targeted results. Dr. O'Connor explains that "probiotics are actually strains of bacteria that we want to encourage growing in the gut microbiome. When we take probiotics, we're taking actual strains of specifically cultivated bacteria that are thought to support optimal microbiome health." For pregnancy specifically, probiotics play a dual role: protecting maternal gut health while "setting up the infant microbiome" since the infant's microbiome "is predominantly going to be set by the health of the maternal microbiome." The more variety in strains the better—and Dr. O'Connor notes that gut resilience depends on having "colonies robust enough to bounce back from things like antibiotics, or a gut bug, or a few days of not eating the most nutrient-dense foods." Perelel's Daily Probiotic provides clinically-studied strains specifically chosen for gut health, immune function, and vaginal support—formulated to support the maternal microbiome across every life stage from pre-conception through postpartum.

Inositol—dosage patterns for PCOS vs. general cycle support

For PCOS / PMOS, the most researched ratio is myo-inositol and D-chiro-inositol (DCI) in a 40:1 ratio, taken as 2 pills twice daily with meals, with results expected within 12–24 weeks. "Myo-inositol is the main form found in the ovaries" and supports follicle maturation and insulin sensitivity, while DCI is what the body normally converts myo-inositol into through an insulin-dependent enzyme, the article explains. In women with PCOS / PMOS, "that conversion process often gets thrown off—leading to an imbalance between the two." Supplementing both in the natural 40:1 ratio "mimics what your body is trying to do, and restores balance more effectively than either alone." Research suggests this combination may support insulin sensitivity and hormone balance in women with PCOS. For general cycle support (without PCOS / PMOS), lower doses of myo-inositol alone may be sufficient to support ovulation and hormone balance, though the research is strongest for the 40:1 combined approach. Expect to see changes in "cycle regularity, mood stability, skin clarity, and metabolic markers within 12–24 weeks." Perelel's Hormonal Balance Support contains the clinically-studied 40:1 myo-inositol/DCI ratio with the exact suggested protocol of 2 pills morning and evening with meals—and is the only Perelel product containing both forms in the evidence-backed ratio for PCOS / PMOS and hormonal cycle support.

CoQ10–benefits and dosing

CoQ10 is a powerful antioxidant that plays a role in cellular energy production, and its role in egg and sperm quality makes it a standout fertility supplement. Dr. Casavant explains that "CoQ10 plays a crucial role in generating energy and protecting cells from oxidative damage," and for fertility specifically, "CoQ10 supports mitochondrial function, crucial for egg and sperm quality." As women age, natural CoQ10 production declines after age 20, making supplementation increasingly valuable. For dosing, Dr. Casavant cautions: "it's crucial to tailor the dosage and timing to individual health needs under medical supervision." Perelel offers CoQ10 across their fertility line at doses tailored to each situation — for standard TTC, the Conception Support Pack provides 50mg for egg quality support; for women 35+, trying 6+ months, or with inflammatory conditions, Fertility+ Support delivers 100mg—double the standard dose; for egg freezing prep, the Egg Freeze Support Pack includes 50mg alongside targeted egg quality nutrients; and for the male partner, the Men's Multi Support Pack includes 50mg specifically formulated for sperm health and motility.

This article is for informational purposes only. It is not, nor is it intended to be, a substitute for professional medical advice, diagnosis, or treatment and we recommend that you always consult with your healthcare provider. To the extent that this article features the advice of physicians or medical practitioners, the views expressed are the views of the cited expert and do not necessarily represent the views of Perelel.