Pragma Journal
Insulin resistance can build for years before glucose moves. Fasting insulin can show it earlier - but there's no agreed clinical cutoff, and that matters.
Samantha Peebles, DCN, RDN · · 2 min read
It affects 5-10% of women after delivery, arrives in two phases that look like ordinary new-parent life, and about 20% don't fully recover.
Samantha Peebles, DCN, RDN · · 2 min read
A panel that looked fine two years ago can shift during perimenopause. Here's the mechanism, and which numbers on it actually deserve attention.
Samantha Peebles, DCN, RDN · · 2 min read
Pregnancy-depleted stores plus blood loss at delivery is a common combination, and the fatigue it causes is indistinguishable from newborn fatigue.
Samantha Peebles, DCN, RDN · · 2 min read
"Normal" is a statistical range, not a personal target. A plain-English guide to reading the labs that matter most for women (ferritin, vitamin D, thyroid, B12, metabolic markers) and the difference between normal and optimal.
Whitney Brooke Isola, MBA, RDN · · 5 min read
The postpartum visit covers a lot in fifteen minutes. Micronutrient depletion (iron, B12, D, omega-3, choline, iodine) often isn't on the list. What to know.
Samantha Peebles, DCN, RDN · · 2 min read
A vitamin D of 31 ng/mL is "normal." So is 75. Those are not the same situation. How to read your result and what the evidence says about where to aim.
Samantha Peebles, DCN, RDN · · 2 min read
Ferritin of 15 passes the lab range. It can still come with exhaustion, hair shedding, and brain fog. What ferritin measures and where the functional threshold sits.
Whitney Brooke Isola, MBA, RDN · · 2 min read