Pregnancy The Science of Nutrition

Whole Food Vitamins: Are They Really Better for You?

Steph Greunke

Whole Food Vitamins: Are They Really Better for You?

When it comes to choosing vitamins, especially during pregnancy, you want to do the very best you can for your body and your baby.

Whole food vitamins might seem like the perfect solution – after all, they're derived from actual foods, right? But before you stock up, let's dive into what our research for our own Prenatal Multi revealed about these seemingly “natural” supplements.

Why Whole Foods Vitamins Might Not Stack Up

You might think that whole foods have a fixed nutritional content, but here's the truth: it's far from consistent. Everything from soil health to storage conditions to your digestive health can affect how many nutrients actually end up in your body. That perfectly ripe strawberry? It might not quite pack the vitamin C punch you're expecting.

Now, imagine concentrating those whole foods into a vitamin. The process adds another layer of complexity that can seriously impact the final product. How ingredients are stored, extracted, and preserved all play a role in maintaining potency. And because supplements aren't regulated like drugs, you really need to trust the company behind the product.

Always check for third-party testing results when possible. 

Form Matters: Not All Nutrients Are Created Equal

While whole foods themselves are easily absorbed by your body, this benefit doesn't always carry over to whole food vitamins. Let's break down some key nutrients:

  • Vitamin A: Whole food vitamins often use Beta Carotene, which your body has to convert to a usable form. Animal-sourced Retinyl Palmitate is much more readily absorbed.
  • Folate: This is a big one, especially for expectant mothers. Many whole food vitamins use Folic Acid, which 40-60% of women have trouble processing due to a genetic variantLook for Methylfolate instead – it's the active form your body can use right away.
  • Iron: Plant-based iron (non-heme) found in most whole food vitamins is less easily absorbed than animal-sourced (heme) iron. Your body might only use 2-20% of the non-heme iron you consume.
  • Vitamin K: K2 is the superstar here, supporting bone health better than the K1 typically found in whole food vitamins.
  • Vitamin B12: Opt for Methylcobalamin or Adenosylcobalamin over the less bioavailable Cyanocobalamin often used in whole food vitamins.
  • Vitamin D: D3 is the way to go. It's the form your body naturally produces when you soak up some sun, and it's more bioavailable than the D2 found in some plant sources.

The Bottom Line

Choosing the right vitamins isn't as simple as "natural is always better." At Needed, we take a science based approach, carefully evaluating each nutrient to find the optimal form and amount. Sometimes that means using whole food sources, and sometimes it means opting for nutrients created in a controlled environment to ensure quality and potency.

Don't be afraid to dig deep when researching your prenatal vitamin. Ask questions about ingredient selection, manufacturing processes, and testing protocols. Your health – and your baby's health – is worth the extra effort.

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Steph Greunke, MS, RD, CPT, PMH-C

Stephanie Greunke is a registered dietitian that specializes in prenatal/postnatal nutrition, behavioral psychology, and holds additional certifications in perinatal mental health and fitness. She's a key contributor and advisor to Needed as well as Needed’s Head of Practitioner Relationships. Steph is the owner of Postpartum Reset, an online postpartum nutrition course, and the co-host of "Doctor Mom" podcast.

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