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The Journal

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Plain-English writing relevant to Grenov customers.

Metabolism

Metabolic Health After 40: The Quiet Drift Almost Everyone Is On

Roughly 1 in 3 U.S. adults over 40 has measurable insulin resistance — and most of them don't know it yet. Here's the biology and the levers that actually move the needle.

April 16, 2025 8 min read
Ingredients

Berberine vs Metformin: What the Head-to-Head Trials Actually Show

Berberine is one of the few botanicals with direct head-to-head trial data against a prescription medication. Here's what the research actually says.

April 9, 2025 9 min read
Tests

HbA1c: The Single Number That Tells You How Your Metabolism Is Doing

HbA1c is the single most informative biomarker for metabolic health in adults over 40. Here's what it means, what range you should target, and how often to check it.

April 2, 2025 6 min read
Ingredients

Cinnamon and Blood Sugar: What the Trials Actually Show

Cinnamon is one of the most-studied dietary spices for blood-glucose effects. Here's what the trials actually show — and what dose you'd need.

March 26, 2025 6 min read
Tools

CGMs and Continuous Glucose Tracking: A Plain Guide for Non-Diabetics

Continuous glucose monitors are now affordable and widely available — and increasingly used by metabolically-healthy adults to understand their own glucose patterns. Here's what they show, and how to use them well.

March 19, 2025 7 min read
Nutrition

Eating for Blood Sugar Stability: The Plain Guide

The dietary patterns that actually move blood sugar in adults over 40 — without invoking any specific named diet or warring camp.

March 12, 2025 7 min read
Body Composition

Visceral Fat: The Type That Actually Matters

Not all fat is the same. Visceral fat — the deep abdominal kind — is the metabolic problem; subcutaneous fat is mostly cosmetic. Here's the difference, and what actually reduces it.

March 5, 2025 6 min read
Product

Starting Grenov: A Plain-English Guide for the First 12 Weeks

What to expect, what to track, and what to do alongside it. No hype.

February 26, 2025 5 min read
Ingredients

Alpha-Lipoic Acid: The Antioxidant That Actually Affects Glucose

Alpha-lipoic acid has decades of clinical use in Germany for diabetic neuropathy. Here's what it does and why it earns a place in metabolic-health formulas.

February 19, 2025 6 min read
Ingredients

Chromium: The Trace Mineral That Actually Affects Insulin

Chromium is one of the few trace minerals with FDA-recognised health claims for blood-glucose maintenance. Here's why.

February 12, 2025 5 min read
Nutrition

Magnesium Deficiency: The Most Common Mineral Shortfall in Adults

Roughly half of adults consume below the recommended magnesium intake. The cost shows up in metabolic, cardiovascular, and sleep endpoints.

February 5, 2025 6 min read
Lifestyle

Sleep and Blood Sugar: One Bad Night Costs You a Day

One night of restricted sleep raises next-day glucose responses by 20-30%. Chronic sleep deprivation produces measurable insulin resistance within weeks.

January 29, 2025 6 min read
Lifestyle

Intermittent Fasting and Glucose: What Actually Works

Time-restricted eating has become broadly popular. Here's what the actual evidence says about its effects on glucose, insulin, and metabolic health.

January 22, 2025 7 min read
Metabolism

Reversing Pre-Diabetes: A Realistic Protocol

Pre-diabetes (HbA1c 5.7-6.4%) is one of the most reversible adult-health diagnoses. Here's the protocol that actually moves the number back.

January 15, 2025 8 min read
Lifestyle

The 10-Minute Post-Meal Walk: The Single Highest-Leverage Habit

A 10-minute walk within 30 minutes of a meal reduces post-meal glucose excursions by 30-50%. The intervention is free, sustainable, and dramatically under-used.

January 8, 2025 5 min read

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