Jun 15, 2026Clinical Trials

Vitamin D in Pregnancy: A Bone Marker Moves, Outcomes Don’t

A pregnancy RCT found vitamin D lowered a bone-resorption marker, but it did not prove protection against maternal bone loss or fractures.

vitamin dpregnancymavidosurinary ctx

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Mar 29, 2026Nutrition

Maternal Gut Microbiome: What Diet Can—and Can’t—Do

Maternal diet can shift gut microbes during pregnancy, but evidence that microbiome-focused eating prevents gestational diabetes remains thin.

gut microbiomepregnancydietary fibershort-chain fatty acids

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Mar 29, 2026Nutrition

L-Arginine for Pre-Eclampsia: Timing Changes the Evidence

L-arginine may reduce pre-eclampsia risk before onset, but treatment data are modest. What a 2025 meta-analysis means for high-risk pregnancy.

l-argininepre-eclampsiapregnancynitric oxide

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Mar 23, 2026Physical Activity

Online HIIT in Pregnancy: What an 8-Week Trial Found

An 8-week online HIIT trial preserved fitness markers and improved body composition in pregnancy. Here is what the data support—and who it does not cover.

hiitpregnancyprenatal exerciseanaerobic threshold

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Mar 17, 2026Nutrition

Mediterranean Diet in Early Pregnancy and Preterm Birth

A meta-analysis links first-trimester Mediterranean diet changes to lower preterm birth risk—but the striking estimate has major limits.

mediterranean dietpreterm birthpregnancyplacental development

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Mar 17, 2026Reproductive Health

PFAS and Miscarriage: What the Norwegian Study Found

A large Norwegian study found no measurable PFAS-miscarriage link, yet human hormone data and design limits keep the reproductive health question open.

pfaspregnancymiscarriageprogesterone

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Mar 13, 2026Nutrition

Do Supplements Prevent Gestational Diabetes? Evidence Review

Myo-inositol, vitamin D, and probiotics show signals for gestational diabetes—but trial limits, null results, and surrogate endpoints matter.

myo-inositolvitamin dgestational diabetespregnancy

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Mar 13, 2026Nutrition

Pregnancy Probiotics: A Modest Metabolic Signal

Can probiotics in pregnancy curb weight gain? A 46-trial review finds a modest 1.25 kg reduction, broad safety data, but no proof they prevent GDM.

probioticspregnancygut microbiomeinsulin sensitivity

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