The Weekly ZIP

Your Zenith Informed Pregnancy: a weekly newsletter breaking down the evidence behind the week’s top pregnancy questions, and a highlight of the most interesting pregnancy-related read of the week

Metamucil, carpal tunnel and AROM

April 10, 2026

A tingling or prickly feeling in your hands is one of those symptoms leaving moms saying Huh?? How could this possibly be pregnancy related? Alas, there is a reason it happens more than you’d think ( to ~1 in 3 moms!) during pregnancy - so here’s what the science says about why.
IUGR, goat cheese, and peak nausea
April 03, 2026
Microplastics, leaking, and salicylic acid
March 27, 2026
Colostrum, allergy meds, and cannabis
March 20, 2026
Big babies, Braxton Hicks, and Tdap
March 13, 2026
Laughing gas, antidepressants and sunless tanning
March 06, 2026
Curb walking, GBS, and acid reflux
February 27, 2026
NIPT, migraines, and preventing tears
February 20, 2026
Vivid dreams, Botox, and trimester zero
February 13, 2026
Waterbirths, baby aspirin, and hair dye
February 06, 2026
Probiotics, epidural recovery, and shoveling snow
January 30, 2026
Nosebleeds, red raspberry leaf, and anatomy scans
January 23, 2026
Hypnobirthing, NA beer, and gestational diabetes trends
January 16, 2026
Melatonin, SPD, and red light masks
January 09, 2026
Tums, cardio, and preventing preeclampsia
January 02, 2026
Tamiflu, placental positioning, pitocin and SSRIs
December 19, 2025
Hep B, Robitussin, and third trimester movement
December 12, 2025
Glucose tests, placental abruption, and the WELLS Act
December 05, 2025
Homebirths, hot tubs, and PPD
November 21, 2025
Iron, continuous fetal monitoring, and the value of midwifery care
November 14, 2025
COVID, retinol, and the power of a mother’s voice
November 07, 2025
Halloween candy, cervical checks, and the postpartum ‘bounceback’ myth
October 31, 2025
Choline, lifting heavy, and preeclampsia
October 24, 2025
RSV protection, heartburn, and membrane sweeps
October 17, 2025
Breech babies, disappearing symptoms, and dates
October 10, 2025
Nausea meds, mucus plugs, and OB access
October 03, 2025
Aspirin vs acetaminophen, creatine, and round ligament pain
September 26, 2025
GLP-1s, matcha, and 'just one glass of wine'
September 19, 2025
Tylenol, VBACs, and heat waves
September 12, 2025
Flu shots, charlie horses, and clinical trials
September 05, 2025

STAY IN THE LOOP WITH ZENITH

The latest in pregnancy evidence, the Weekly ZIP newsletter, and Zenith updates - straight to your inbox

Blog posts

Recent posts from the Zenith blog

Why You Feel So Overwhelmed in Pregnancy

Olivia Bergeron, LCSW, PMH-C
•
March 31, 2026

It's that feeling so many moms describe: the overwhelm that doesn't make sense (somehow, I used to manage all of this!), the emotional reactivity that feels out of character (I see red over the littlest inconveniences!), the 3am spiral when you can't turn your brain off (what if...then what?).

Studying Pregnancy Safely: Observational Research Explained

Monica Gierada, MPH
•
December 02, 2025

Contrary to what headlines and social media often suggest, science doesn’t actually deal in proof; it deals in probabilities. Studies give us estimates of how the world likely works, not absolute certainty – and the stronger their design and execution, the closer those estimates get to the truth.

Why Don't We Know More About Pregnancy?

Monica Gierada, MPH
•
November 25, 2025

There’s a growing recognition among experts that excluding pregnant people from research may cause more harm than including them —  after all, pregnant people take medications whether we study them or not. So how do we fill the gaps in evidence, when traditional clinical trials aren't possible?

From Clickbait to Clarity

Abigail Bertelson
•
August 28, 2025

When tens (or even hundreds) of conflicting and clickbaiting headlines and notifications flood your phone’s home screen every day, how do you go about making sense of it all?

Celebrating Equal Research Day 2025

Abigail Bertelson
•
June 10, 2025

Today (June 10) is Equal Research Day: celebrated to raise awareness of the gender health gap and to promote inclusive research. June 10, 1993 is when women were finally required to be included in clinical research in the U.S.

Launching Zenith Health’s Platform to Close the Pregnancy Evidence Gap

Abigail Bertelson
•
April 30, 2025

April 30, 2025 — Today, we are proud to be launching the Zenith Health platform: the Zenith Pregnancy Evidence Project and Ask Penny!

Expecting & Informed: A Map of Pregnancy Health Resources

Abigail Bertelson
•
March 25, 2025

It’s incredible to see the ecosystem that has emerged around supporting women through pregnancy — from traditional healthcare providers, to new digital health solutions, and seemingly endless online resources and content.

Introducing Zenith Health

Abigail Bertelson
•
February 04, 2025

Pregnant women are constantly left guessing whether their medications are safe, if their symptoms and experiences are “normal,” and how to make the best decision for their own and their baby’s health.
See all blog posts