From Sara Russell’s interview with Dr. Izabella Wentz

How to Choose the Perfect Prenatal

What does the body need during pregnancy?

A research-backed guide to help you match prenatal nutrients to individual needs, lab data, and symptoms.

Prenatal Guide - Wentz

Instant access. Takes less than 10 seconds.

Created by Sara Russell, PhD
Chief Clinical Officer at LabSmarts

Sara is a clinician specializing in functional blood work interpretation, bringing real-world experience to clinical cases and teaching practitioners how to identify patterns, root causes, and early dysfunction using real lab data.

Inside the Guide, You’ll Learn…

  • Why beta-carotene alone may not meet vitamin A needs
  • How to choose the right balance of methylated and non-methylated B vitamins
  • When iron should be included and when it should be supplemented separately
  • How lab markers like B12, folate, homocysteine, and iron panels guide decisions
  • How to personalize prenatals based on symptoms, labs, and tolerance

Most Prenatal Recommendations Are Based on Incomplete Information

Even with the best intentions, decisions are often made without fully understanding:

  • What the labs are actually showing
  • Where dysfunction is occurring
  • How pregnancy physiology changes interpretation

That’s why recommendations can feel uncertain.

This Guide Changes How You Approach Prenatal Decisions

Because every recommendation depends on understanding:

  • Lab data
  • Physiology
  • Individual response

Not just ingredients.

How Do You Know What Nutrients are Really Needed?

How do you determine:

  • Is beta-carotene getting converted into vitamin A?
  • Are methylated or non-methylated B vitamins needed?
  • Should iron be included or supplemented separately?

The answer is in the blood work.

That’s exactly why we built LabSmarts.

So you can:

  • Interpret lab results in a way that reflects what’s actually happening in the body
  • Identify nutrient needs based on real data, not general recommendations
  • Recognize patterns that standard ranges and one-size-fits-all approaches miss

Because during pregnancy, what’s “normal” changes.