Four modern forces are quietly stripping the minerals your cells need to make energy — and almost no one is talking about it.
The first article explained what metabolic flexibility is. This one answers the harder question: why has it broken down for so many of us?
The answer begins in the dirt. The machinery that switches your fuel does not run on food alone — it runs on minerals. And the modern world strips those minerals at every step between the soil and your cells.
The depletion chain. Four modern forces strip the same minerals your cells run on — compounding one after another.
Link one: the soil isn't what it was
The mineral content of agricultural soil has declined over a century of intensive farming. Crops can only contain what the soil gives them — depleted ground grows mineral-poor food.
Link two: glyphosate, the mineral thief
Glyphosate, the world's most widely used herbicide, is a chelator — it binds tightly to metal minerals. That action does not stop at the farm gate; by binding minerals in soil and plant, it reduces the mineral value of the crops it is sprayed on.
Link three: the water that takes minerals back
Here is the cruelest twist. Millions install reverse-osmosis (RO) filters, believing purer water is healthier. But RO removes 92 to 99 percent of water's minerals.1 And empty water does not stay empty — low-mineral water is "aggressive" and draws minerals into itself. A 2023 peer-reviewed review found that low-mineral water can absorb minerals from the body, contributing to demineralization of bones and teeth.1 The WHO reached a similar conclusion, noting cooking with it can strip up to 60 percent of minerals from food.2
So the very filter installed to make water "cleaner" can pull the last remaining minerals back out of the body it was meant to protect.
This is debated — filtration-industry voices call the effect negligible for well-fed adults — but the published physiology is clear, and stacked on depleted soil and glyphosate, every link removes the same minerals.
Why minerals are the whole game
The Krebs cycle depends on mineral cofactors at nearly every step — magnesium, manganese, and iron among them.
Magnesium is a required cofactor for the key dehydrogenase enzymes;3 manganese activates others; iron (as iron-sulfur clusters) is essential to aconitase; chromium sharpens the insulin signaling that lets glucose into the cell. Pull these out and the engine stalls — producing cravings, poor sleep, fog, fatigue. Mitochondrial dysfunction is implicated across a wide range of chronic disease.4
The iron paradox
Iron is the cautionary tale. Cheap inorganic iron is added to flour, cereal, and processed food — so many people are not deficient but quietly iron-overloaded. And iron does its damage in storage, not the blood: the body sequesters excess in the liver, heart, and brain, so a routine blood test can look normal while iron accumulates in the organs and oxidizes.5
The copper key
Copper, through the enzyme ceruloplasmin, mobilizes stored iron out of the organs. Without usable copper, iron stays locked in the tissues — oxidizing and damaging mitochondria.
The answer is copper. The body uses the copper-dependent enzyme ceruloplasmin to mobilize stored iron, oxidizing it so it can leave storage.6 In a classic study, restoring copper raised ceruloplasmin 25-fold in two days, and liver iron dropped ~30 percent.7 This is why someone can be "low" on blood iron yet overloaded in the tissues.
The form matters What counts is copper in a form the body can use to build ceruloplasmin — the working enzyme. Form, not just dose, determines whether a mineral ever reaches the machinery that needs it.
The picture, assembled
Depleted soil, glyphosate, and RO water strip the same minerals; cheap additive iron accumulates because the copper to manage it is depleted. The mitochondria — starved and damaged — lose their ability to switch fuels. Every link points to one solution: restore the specific minerals, in the specific forms, the machinery was built to use.
References
Verma S, et al. The Role of Low Mineral Water Consumption in Reducing the Mineral Density of Bones and Teeth: A Narrative Review. PMC, 2023.
Kozisek F. Health Risks from Drinking Demineralised Water. World Health Organization.
Citric Acid Cycle cofactor requirements. StatPearls, NCBI Bookshelf, 2023.
Goodpaster BH, Sparks LM. Cell Metabolism. 2017;25(5):1027–1036.
Reviews of iron storage, tissue iron loading, and oxidative damage independent of serum iron.
Biological functions of ceruloplasmin in copper and iron homeostasis. PubMed 11177225.
Anemia, Iron Storage and Ceruloplasmin in Copper Nutrition in the Growing Rat. Journal of Nutrition.