The Kasivit Journal — Issue 1

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Issue 1 · May 12, 2026

GLP-1 Nutrition, Leaky Gut & Why Magnesium Beats Melatonin

By the Kasivit Editorial Team · 8 min read

Editorial Note

Welcome to Issue 1 of The Kasivit Journal.

We started The Kasivit Journal because the gap between what clinical research shows and what most people hear about supplements is enormous. Too much supplement advice is vague, overstated, or untethered from evidence. Every issue, we aim to close that gap — clearly, honestly, and without an agenda beyond helping you make better decisions.

GLP-1 medications like Ozempic and Wegovy represent a genuine advance in metabolic medicine. They also create nutritional vulnerabilities that most patients — and many clinicians — aren’t aware of. This issue is largely about that.

— The Kasivit Editorial Team

From the Kasivit Blog
May 9, 2026 · Gut Health · GLP-1
L-Glutamine and Leaky Gut: What the Evidence Actually Says

The gut lining is a single cell layer thick. L-Glutamine is the primary fuel source for intestinal epithelial cells, and clinical evidence supports its role in maintaining tight junction integrity — particularly relevant for GLP-1 users whose altered gastric motility changes the gut environment.

Read the full article →
May 7, 2026 · Sleep Science · Magnesium
Why Magnesium Fixes Sleep Better Than Melatonin

Melatonin signals your body it’s nighttime but doesn’t improve sleep architecture. Magnesium glycinate modulates GABA receptors and reduces cortisol, actually improving deep sleep quality.

Read the full article →
May 5, 2026 · GLP-1 · Ozempic
What Supplements Should You Take With Ozempic? A Clinical Overview

GLP-1 medications suppress appetite dramatically, but nutritional needs don’t shrink with appetite. Six supplements — each addressing a specific vulnerability — are consistently supported by the evidence.

Read the full article →
Evidence Corner
1. Berberine activates AMPK independently of GLP-1 receptors
Metabolism, 2023 · Meta-analysis, 12 RCTs

Berberine improves insulin sensitivity and fasting glucose via the AMPK pathway — the same energy-sensing mechanism that GLP-1 receptor agonists activate through a different route. Complementary mechanisms, additive metabolic benefits, no pharmacological conflict.

Clinical takeaway: 500 mg once or twice daily with meals is the dose used in the highest-quality trials.
2. Semaglutide alters gut microbiome composition within 12 weeks
Cell Host & Microbe, 2024 · Prospective cohort, n=178

Patients on semaglutide showed significant microbiome shifts at 12 weeks. Those who supplemented with probiotics during treatment showed smaller disruption and fewer GI side effects.

Clinical takeaway: Multi-strain probiotic with at least 10 billion CFU from day one of GLP-1 therapy.
Product Spotlight
Kasivit Magnesium Glycinate
275 mg elemental Mg · 3 capsules · 30 servings · Subscriber offer: JOURNAL10

Magnesium is involved in over 300 enzymatic reactions. Nearly half of Americans are functionally deficient — and reduced food intake on GLP-1 therapy compounds this further. Magnesium glycinate is the chelated form with documented superior bioavailability compared to magnesium oxide, which provides less than 4% absorption and commonly causes GI distress.

Bedtime dosing is recommended: it supports sleep architecture and overnight muscle recovery — both of which are particularly important during periods of active weight loss.

Shop Magnesium Glycinate →

Subscriber discount: use code JOURNAL10 for $10 off any order of $30+

From the Literature

Protein distribution matters as much as total protein. Spreading intake evenly across meals improved lean mass retention during caloric restriction. JAMA Internal Medicine, 2024.

Creatine preserves muscle during semaglutide treatment. 5 g/day creatine monohydrate significantly attenuated lean mass loss vs. placebo over 24 weeks. Obesity, 2025.

Magnesium deficiency is underdiagnosed. Only 1% of body magnesium is in the blood; serum levels appear normal while cellular stores are depleted. An estimated 45% of Americans are functionally deficient. Nutrients, 2023.

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The Kasivit Journal · Issue 1
May 12, 2026 · Kasivit Editorial Team