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The Metabolics Journal

Health, nutrition and the evidence behind them, covered with the same integrity we put into every batch.

This week's read

Selected by our editorial team, updated every Monday.

Magnesium L-threonate: the most specific magnesium we have ever made - Metabolics

Magnesium L-threonate: the most specific magnesium we have ever made

Magtein Magnesium L-threonate is a form of magnesium bound to a compound the body makes from vitamin C. Here is what makes it distinctive, how it compares with bisglycinate, and who it is for.

Kelly O'Neill September 18, 2026 8 min read

Who writes the Journal

Registered nutritional therapists, qualified scientists and specialist health writers. Every article is reviewed for accuracy before it goes live.

Energy & Vitality

Which Magnesium Should You Take? The Different Types of Magnesium Explained

Which Magnesium Should You Take? The Different Types of Magnesium Explained

Magnesium reviews compare brands, but the form of magnesium is the decision that matters. We explain the different ty...

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How to Support Your Immune System in Autumn: A Practical Guide

How to Support Your Immune System in Autumn: A Practical Guide

Autumn is the one season when what your immune system needs genuinely changes. Here is a practical guide to what to t...

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Magnesium and sleep: what the evidence says

Magnesium and sleep: what the evidence says

Magnesium is one of the most talked about supplements for sleep, but what does it really do? We look at its establish...

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Why Hay Fever Is Getting Worse and What Actually Helps

Why Hay Fever Is Getting Worse and What Actually Helps

If your hay fever seems to start earlier, last longer and hit harder than it used to, you're not imagining it. Pollen...

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Gut & Metabolic Health

Bloating, hormones and the female body: what is normal, what is not, and what actually helps

Bloating, hormones and the female body: what is normal, what is not, and what actually helps

Most women bloat, and most of the time it is ordinary physiology doing something predictable. But "common" is not the...

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Is Berberine Safe? Why We’re Not Selling “Nature’s Ozempic”

Is Berberine Safe? Why We’re Not Selling “Nature’s Ozempic”

Berberine has become one of the most searched supplements online, marketed as a natural shortcut to weight loss and ...

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Fructose and Metabolic Health: What You Should Know

Fructose and Metabolic Health: What You Should Know

Is fructose bad for you, or only when it comes from processed foods? A clear look at how fructose affects metabolic h...

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GLP-1 Medications and Nutrition: What Your Body Needs When You're Eating Less

GLP-1 Medications and Nutrition: What Your Body Needs When You're Eating Less

GLP-1 medications work. But eating less and eating well aren't the same thing. When portions shrink, so does your int...

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Beauty & Skin From Within

Collagen for Women: Skin, Hair and Joint Health Through Life

Collagen for Women: Skin, Hair and Joint Health Through Life

Collagen is the body's most abundant structural protein, supporting skin elasticity, joints, hair and bone. Women's n...

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Astaxanthin: What It Is, Where It Comes From and How to Take It

Astaxanthin: What It Is, Where It Comes From and How to Take It

Astaxanthin is a carotenoid produced by microalgae, and it is one of the substances where the marketing has run ahead...

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Defending Your Skin from Pollution: Nourish & Glow from Within

Defending Your Skin from Pollution: Nourish & Glow from Within

Each day our skin is exposed to environmental pressures ,from air pollution and UV rays to everyday toxins. These fac...

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Hair, Skin and Nails: Which Nutrients Have Evidence Behind Them

Hair, Skin and Nails: Which Nutrients Have Evidence Behind Them

Biotin and zinc contribute to the maintenance of normal hair, skin and nails. What that actually means, why most peop...

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Cognitive Health

Working from Home: Nutrition for Focus and Steady Energy

Working from Home: Nutrition for Focus and Steady Energy

Working from home means fewer natural breaks, less daylight and irregular meals, and it accumulates over weeks rather...

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Feeling Frazzled? Why Ashwagandha is the Stress-Busting Bestie Every Woman Over 40 Needs

Feeling Frazzled? Why Ashwagandha is the Stress-Busting Bestie Every Woman Over 40 Needs

Feeling constantly frazzled after 40? Discover what Ashwagandha is, how it works as an adaptogen, and what the scienc...

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Vitamins for Brain Function: What Food and Supplements Contribute

Vitamins for Brain Function: What Food and Supplements Contribute

Brain health is built over years, not weeks. Which nutrients contribute to normal brain function, where to find them ...

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Vitamins for Your Nervous System: What Supports Normal Nerve Function

Vitamins for Your Nervous System: What Supports Normal Nerve Function

Neurons are among the most metabolically demanding cells in the body. Which nutrients contribute to normal nervous sy...

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Hormones & Lifestage

Supporting Prostate Health:  A Clear Guide for Men

Supporting Prostate Health: A Clear Guide for Men

Most men barely think about their prostate until something feels off, or a name in the news gives them pause. Here ar...

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Can You Put Creatine in Coffee? What the Science Says

Can You Put Creatine in Coffee? What the Science Says

Your coffee’s brewing and your creatine’s on the counter. Does heat ruin it? Does caffeine cancel it out? We look at ...

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What Is Sacha Inchi Oil? The Plant-Based Omega-3 Worth Knowing About

What Is Sacha Inchi Oil? The Plant-Based Omega-3 Worth Knowing About

If you’ve been anywhere near wellness social media recently, sacha inchi oil has probably crossed your path more than...

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Supplements for Menopause and Perimenopause: A Practical Guide

Supplements for Menopause and Perimenopause: A Practical Guide

Perimenopause can start in your early forties and last years. Which nutrients have evidence behind them, which don't,...

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Movement & Recovery

Healthy Recovery: Sleep, Movement & Rest Without the Obsession

Healthy Recovery: Sleep, Movement & Rest Without the Obsession

Recovery has become a competitive sport. But the science points somewhere quieter: sleep, movement, food, and the peo...

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Strength Training in Your 30s and 40s: What Women and Men Need to Know

Strength Training in Your 30s and 40s: What Women and Men Need to Know

Strength training has gone from niche to mainstream, and the research explains the shift. Muscle starts to decline fr...

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The Summer Holiday Supplement Guide: Staying Well Away From Home

The Summer Holiday Supplement Guide: Staying Well Away From Home

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How Walking Boosts Daily Energy and Adds Enjoyment

How Walking Boosts Daily Energy and Adds Enjoyment

In this issue, we’ll share fun ways to enhance your walks, smart nutrition tips to keep you fuelled, and supplements ...

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