Most women start taking a prenatal supplement when they get a positive pregnancy test—but is that the right time?
By then, some of the most critical stages of early development have already taken place, and the nutrient stores that support them were either there or they weren't.
Earlier Than You Think
The neural tube closes around day 28 of pregnancy. By this stage, the foundations of the baby's brain and spinal cord have already formed—often before a pregnancy test has even been taken.
That means folate needs to already be present. It's not a nutrient you can "catch up" on afterwards.
Many essential nutrients also take weeks or months to build up to meaningful levels in the body. That's why beginning supplementation well before you're actively trying to conceive is so important.
It's not just about pregnancy, either. Eggs begin maturing around three months before ovulation, so the three to six months before trying to conceive is when much of the groundwork is laid.
One Supplement Across the Whole Journey
The simplest approach is choosing a prenatal supplement you can take consistently—from before conception, throughout pregnancy, and into the postpartum period—instead of changing products at every stage.
Think of your prenatal as your nutritional foundation. The additional supplements you take may change depending on the stage you're in, but your foundation remains the same.
Postpartum Matters Too
Many women stop taking their prenatal supplement after giving birth—but this isn't something we recommend.
Several key nutrients, including choline, iodine and vitamin D, are passed directly through breast milk. In fact, the recommended intake for some nutrients is even higher during breastfeeding than it is during pregnancy.
Your baby is still relying on the nutrients you're providing, while your own body is simultaneously recovering from pregnancy and birth.
Even if you're not breastfeeding, your body still needs time to replenish its nutrient stores. Recovery can take up to two years, so continuing your prenatal supplement for at least the first few months postpartum can still be beneficial.
It's Important for Him Too
Sperm takes approximately 74 days to develop.
The nutrients available during this time can influence sperm quality, DNA integrity and motility. If both partners begin supporting their nutrition around three months before trying to conceive, they're giving themselves the best opportunity to support reproductive health together.
This article is intended as general information only and should not be considered medical advice. If you have a medical condition, are taking medication or have specific health concerns, please speak with your GP or healthcare professional before starting any new supplements.