We live in a world that is faster, more demanding, and constantly “on.” Yet beneath the surface, something more fundamental is happening: the essential minerals our bodies rely on are being steadily depleted - creating what we call a mineral gap.
This gap isn’t always obvious, but it’s increasingly common.
Most people don’t notice it happening.
They just feel the effects.
Energy drops.
Focus fades.
Recovery slows.
It’s not a lack of effort.
It’s a weakened foundation.
Once you understand what’s driving the mineral gap, you can start rebuilding the foundation your body relies on.
What are minerals, and why do they matter?
Minerals are essential nutrients your body cannot make on its own. You have to get them from food, drink or supplementation.
They may be small, but their role is anything but.
Magnesium supports energy production, muscle function and the nervous system. Calcium contributes to bones and muscle function. Zinc supports immunity, skin and normal cognitive function. Selenium helps protect cells from oxidative stress. Potassium supports fluid balance and normal muscle function.
In other words, minerals are not “nice to have.” They are foundational.
They help your body do the things you expect it to do every day: wake up with energy, think clearly, move well, recover properly, sleep deeply and stay resilient.
When intake, absorption or retention starts to fall short, the effects can be subtle at first.
A little more tired.
A little more wired.
A little slower to bounce back.
Over time, those small shifts can add up.
DID YOU KNOW
Mineral levels of zinc, iron, copper and magnesium in wheat have declined by an estimated 20–30% since the mid-1960s.¹
1. Our soil is not as mineral-rich as it used to be
Minerals begin in the soil.
Plants absorb minerals as they grow. We eat the plants - or animals that have eaten the plants - and those minerals become part of our own nutritional intake.
So when soil quality changes, food quality can change too.
Modern farming has helped feed a growing population, but it has also placed enormous pressure on soil health. Intensive cultivation, reduced crop diversity, soil erosion, lower organic matter and repeated harvesting can all affect the mineral profile of the food grown in that soil.
The Soil Association has highlighted the need to rebuild soil organic matter, reduce over-cultivation and protect soil life as part of maintaining healthier, more resilient soils.²
Long-running research from Rothamsted’s Broadbalk Wheat Experiment found that levels of zinc, iron, copper and magnesium in wheat stayed relatively stable from 1845 until the mid-1960s. After that, they declined significantly, with an overall reduction of around 20–30%.¹
That matters.
Not because vegetables are suddenly “bad” for us. They are not. Whole foods still matter hugely.
But it does mean the same plate of food may not always deliver the same mineral density it once did.
So you can be eating well - and still not getting quite what your body needs.
2. Stress burns through your mineral reserves
Stress is often treated like a mindset issue.
But your body experiences it physically.
When you are under pressure, your body shifts into a higher-demand state. Your nervous system works harder. Your muscles tense. Your heart rate changes. Your sleep can suffer. Your body has to produce and regulate stress hormones.
All of that requires nutrients.
Research suggests that psychological and environmental stress can affect levels of key micronutrients, including magnesium, zinc, calcium and iron.³ Magnesium is particularly important because of its role in the nervous system and stress response.
This is where the cycle can begin.
Stress can contribute to lower magnesium status. Lower magnesium status can make it harder for the body to manage stress well. Researchers have described this as a two-way relationship between magnesium and stress.⁴
And for many women in midlife, stress is not occasional.
It is constant.
Work. Family. Hormonal change. Poor sleep. Caring responsibilities. Mental load. Life admin. The pressure to keep functioning at full speed.
The body keeps going.
But it still needs support.
3. Age changes how we absorb and use minerals
From around midlife, the body starts to change in ways that can affect mineral status.
This is not about “getting old.” It is biology.
Research shows that ageing can affect intestinal absorption of key minerals, including calcium, zinc and magnesium.⁵ Magnesium status may also become more vulnerable with age, due to lower intake, reduced absorption and increased loss through the kidneys.⁶
For women, this becomes especially relevant from the 40s onwards.
Hormonal changes can influence sleep, stress resilience, muscle function, bone health and energy metabolism - all areas where minerals play a key supporting role.
Calcium is a good example. Absorption can decline with age and post-menopause, which matters for long-term bone and muscle health.⁷
DID YOU KNOW
Calcium absorption has been reported to decline by around 0.21% per year after age 40.⁷
Again, this does not mean deficiency is inevitable.
It means the foundation needs more attention.
What worked in your 20s or 30s may not be enough in your 40s, 50s and beyond. Your body may need more consistency, more nutrient density and more targeted support.
4. Caffeine, alcohol and poor sleep widen the gap
The mineral gap is rarely caused by one thing.
It is usually the result of lots of small daily drains.
Caffeine can increase fluid output in some people, and for many of us it becomes a crutch when sleep is poor. Alcohol can affect magnesium status and increase urinary losses. Processed foods can crowd out more nutrient-dense choices. Poor sleep can raise stress levels, which can then increase the body’s demand for minerals involved in energy, recovery and nervous system balance.
It becomes a loop.
Poor sleep leads to more caffeine.
More caffeine can affect hydration.
Stress builds.
Recovery slows.
Energy drops.
The body asks for more support - but often receives less.
This is why mineral support is not just about what you eat.
It is also about what modern life asks from you.
5. Modern diets can be full, but not fully nourishing
Many people are not underfed.
They are undernourished.
A modern diet can provide enough calories while still falling short on key minerals. This can happen when meals are built around ultra-processed foods, low-protein choices, skipped meals, restrictive dieting or a lack of variety.
Even “healthy” diets can miss the mark if they are repetitive, low in mineral-rich foods or not matched to your stage of life.
The goal is not perfection.
It is consistency.
Leafy greens, nuts, seeds, pulses, whole grains, seafood, quality protein, dairy or fortified alternatives can all help provide essential minerals.
But for many women over 45, food alone may not always bridge the gap - especially when stress, poor sleep, age-related changes and modern soil quality are all working in the opposite direction.
This is where thoughtful supplementation can play a role.
Not as a replacement for a good diet.
As a daily reinforcement.
The mineral gap is quiet - until it isn’t
You may not feel mineral depletion happening in real time.
You may just notice that you are not recovering like you used to.
That your energy feels less steady.
That your focus dips earlier in the day.
That sleep feels lighter.
That your muscles feel tighter.
That stress feels harder to shake.
These signs can have many causes, and persistent symptoms should always be discussed with a healthcare professional.
But the foundation is worth looking at.
Because minerals support the systems that keep you functioning well every day.
Energy.
Hydration.
Muscle function.
Nervous system balance.
Bones.
Sleep.
Resilience.
The mineral gap is not about doing more.
It is about giving your body more of what it needs to keep up with the life you are already living.
References
- Rothamsted Research. Fact or Fake News: Is our food becoming less nutritious?
https://www.rothamsted.ac.uk/article/fact-or-fake-news-our-food-becoming-less-nutritious - Soil Association. Saving Our Soils: Healthy soils for our climate, nature and health.
https://www.soilassociation.org/media/24941/saving-our-soils-report-dec21.pdf - Lopresti AL. The Effects of Psychological and Environmental Stress on Micronutrient Concentrations in the Body: A Review of the Evidence. Advances in Nutrition, 2020.
https://pubmed.ncbi.nlm.nih.gov/31504084/ - Pickering G, Mazur A, Trousselard M, et al. Magnesium Status and Stress: The Vicious Circle Concept Revisited. Nutrients, 2020.
https://pmc.ncbi.nlm.nih.gov/articles/PMC7761127/ - Coudray C, Feillet-Coudray C, Gueux E, et al. The effect of aging on intestinal absorption and status of calcium, magnesium, zinc, and copper. Journal of Trace Elements in Medicine and Biology, 2006.
https://pubmed.ncbi.nlm.nih.gov/16785046/ - Barbagallo M, Veronese N, Dominguez LJ. Magnesium in Aging, Health and Diseases. Nutrients, 2021.
https://pmc.ncbi.nlm.nih.gov/articles/PMC7912123/ - Institute of Medicine. Dietary Reference Intakes for Calcium and Vitamin D: Overview of Calcium. National Academies Press, 2011.
https://www.ncbi.nlm.nih.gov/books/NBK56060/