Could Your Medication Be Affecting Your Nutrient Levels?

When somebody starts a medication, they are usually told what it is intended to do.

What I don't think people hear nearly enough about is what taking that medication for months or years may potentially do to their nutritional status.

Some commonly prescribed medications can affect the absorption, metabolism or excretion of particular vitamins and minerals. This is not simply an alternative-health theory. Drug–nutrient interactions are well recognised.

Yet I continue to meet people who have taken medications for years and have absolutely no idea that relevant nutrients may need consideration or monitoring.

Then they become tired. Their memory deteriorates. They experience weakness, pins and needles, muscle problems, digestive symptoms or changes in mood. Another symptom has appeared — but has anybody gone back and asked whether something they're already taking could be contributing?

That is the question I want people to start asking.

PPIs: Does Heartburn Really Mean You Have Too Much Stomach Acid?

This is an area where I think people need much better information.

Someone experiences heartburn or reflux and can easily come away with the impression that their stomach is simply producing too much acid.

But that isn't what reflux actually proves.

Between the oesophagus and stomach is the lower oesophageal sphincter (LES). This ring of muscle acts as part of the barrier designed to keep stomach contents where they belong.

Reflux can occur when that sphincter becomes weak or relaxes when it shouldn't, allowing stomach contents to travel upwards into the oesophagus.

The oesophagus isn't designed to tolerate repeated exposure to gastric contents, so acid reaching the wrong place can create the familiar burning sensation of heartburn.

The important point is that having acid in the wrong place does not automatically mean the stomach was producing too much acid in the first place.

And I think that distinction is incredibly important.

Some people can also have reduced stomach-acid production for other reasons. Therefore, symptoms of heartburn alone cannot reliably tell us whether someone's gastric-acid production is high, normal or low.

Proton pump inhibitors such as omeprazole and lansoprazole work by substantially reducing the amount of acid the stomach produces.

But reducing the acidity of what is coming back up isn't necessarily the same thing as correcting why stomach contents were coming back up in the first place.

That is where I think we need to ask more questions.

Why is this person refluxing? Is the lower oesophageal sphincter functioning properly? Is there a hiatus hernia? Is increased abdominal pressure involved? Could body weight be contributing? What and when are they eating? Are they lying down soon after meals? Could alcohol or smoking be aggravating it? Could another medication actually be contributing to their reflux?

These aren't insignificant questions.

In fact, certain medications themselves are recognised as potentially causing or worsening reflux.

So imagine somebody develops reflux partly because of another medication, receives a PPI for the reflux and remains on both medications long term.

This is exactly why we need to look at the whole medication list rather than treating every new symptom as an unrelated event.

Even NICE recommends review of people needing long-term management of dyspepsia and, where appropriate, considering stepping down or stopping treatment.

And then we come back to the subject of this article: nutrients.

Long-term acid suppression has recognised associations with vitamin B12 and magnesium, with iron and calcium also relevant considerations in particular circumstances.

Stomach acid isn't a useless substance the body accidentally produces. It has important physiological functions, including helping us digest food, obtain nutrients from it and kill unwanted bacteria.

So rather than simply asking:

“How do we stop the burning?”

I want us to ask:

“Why is this person refluxing? What is happening with the sphincter? What else are they taking? Does this medication remain necessary? What nutritional consequences should we be considering? And has anybody actually investigated the original problem?”

Because suppressing a symptom and understanding its cause are two very different things.

Metformin: The B12 Connection People Need to Know About

Metformin is another very clear example of why this conversation matters.

Long-term metformin treatment can reduce vitamin B12 levels, and the UK's medicines regulator recognises B12 deficiency as a common side effect, with the risk increasing with higher doses, longer treatment and other risk factors.

Why does that matter?

Because B12 deficiency can cause extreme tiredness, weakness, pins and needles, cognitive changes and neurological problems.

Think about the potential sequence.

Someone takes a medication for years. Their B12 falls. They become exhausted or develop neurological symptoms. If nobody considers or checks B12, those symptoms may appear to be another completely separate health problem.

This is precisely why people need information.

And I would also want to go back to the beginning and ask what was driving deteriorating blood-sugar regulation in somebody with type 2 diabetes.

What was happening with their diet? Their activity? Their sleep? Their metabolic health? What opportunities were there to intervene earlier?

Treating the blood-glucose number should never mean that we stop investigating what is driving the problem.

Diuretics: One Medication, Several Possible Mineral Changes

Certain diuretics can affect sodium, potassium and magnesium.

These minerals aren't insignificant. They are involved in nerve signalling, muscle function, fluid balance and normal heart function.

This is also why blindly supplementing isn't the answer. Some diuretics can actually cause potassium to become too high rather than too low.

People need proper information and appropriate monitoring — not guesswork.

Corticosteroids and Your Bones

Long-term systemic corticosteroid treatment can have significant consequences for bone health and increase the risk of osteoporosis and fractures.

So if somebody requires prolonged steroid treatment, surely the conversation shouldn't end with handing them a prescription.

What is happening with their vitamin D and calcium intake and status? Are they getting adequate protein? Are they physically able to undertake appropriate weight-bearing activity? What other osteoporosis risk factors do they have? Is their bone health being appropriately assessed?

If we know that a treatment can create problems elsewhere in the body, why would we wait until another health problem develops before paying attention?

Anti-Seizure Medication and Nutritional Considerations

Some anti-seizure medicines have important nutritional considerations, including potential effects involving vitamin D, calcium and bone health, while individual medications may have other specific nutrient interactions.

Could a Nutrient Problem Become Another Diagnosis?

This is where I think things become particularly concerning.

Imagine somebody develops a genuine nutrient deficiency partly because of medication they have taken for years.

The deficiency produces symptoms.

Nobody identifies the deficiency.

Those symptoms are then treated as an entirely separate health problem.

Another medication is prescribed.

The original medication remains.

Now the person has another drug with another collection of potential adverse effects and interactions.

Can you see how easily the picture can become increasingly complicated?

These possibilities should be considered before automatically assuming that another completely independent illness has appeared.

But There Is an Even Bigger Question: Did We Need to Get Here?

This is the part I feel particularly strongly about.

Before somebody spends years taking medication for a symptom, did anybody properly investigate why that symptom appeared?

Symptoms are information from the body.

Reflux is information. Persistent exhaustion is information. Constipation is information. Headaches are information. Changes in blood sugar are information.

A symptom doesn't necessarily tell us exactly what its underlying cause is, and sometimes it is warning us about something that requires medical investigation.

But a recurring headache is not evidence of a paracetamol deficiency, just as persistent reflux isn't evidence that somebody's body has developed an omeprazole deficiency.

Medication can suppress or control a symptom. Sometimes that is extremely useful and necessary.

But controlling a symptom and addressing why it developed are not automatically the same thing.

What Was the Body Trying to Tell Us?

This is where I believe people need far more education.

What was happening with someone's nutrition when their symptoms began? Were there nutritional deficiencies? How was their digestion? What was happening with their blood-sugar regulation? Were they sleeping? What was their stress load? Were hormonal changes involved? Could another medication have been contributing? Were appropriate investigations carried out?

Sometimes the answer will be complicated.

But sometimes it can be surprisingly basic.

I have seen what can happen when people are finally taught about nutrition, blood-sugar regulation, digestion, sleep, nutrients and the way their body communicates through symptoms.

They start recognising patterns. They begin understanding the connection between what they do every day and how their body responds. They stop seeing every symptom as an isolated event.

And sometimes addressing a modifiable factor early may help prevent a relatively manageable problem from becoming a much bigger one.

That is where I believe we are missing an enormous opportunity.

Medication Isn't Always the Only Tool Available

Nutrition, lifestyle changes and addressing modifiable underlying factors can form an important part of treatment, before medication, depending on the individual and the condition.

Type 2 diabetes is an obvious example. Nutrition, physical activity, body composition, sleep and metabolic health can make an enormous difference, and remission is achievable.

Blood pressure can also respond significantly to changes in diet, physical activity, body weight, alcohol intake and other modifiable factors including supplements.

But people need to be taught how to make those changes.

Telling somebody to “eat better” isn't health education.

People need to understand how their body works. They need to understand protein, carbohydrates and fats, blood-sugar regulation, sleep, stress, digestion and how to construct meals that actually nourish them.

If we gave people this knowledge when the first warning signs appeared, how many health problems could potentially be nipped in the bud before somebody reached the point of needing increasing levels of treatment?

That is prevention.

Don't Automatically Add Another Supplement Either

I work with nutrition and supplements, but my answer to excessive prescribing isn't excessive supplementing.

If somebody takes metformin, that doesn't mean they should blindly start taking enormous doses of B12.

If they're taking a diuretic, they shouldn't automatically start potassium.

If they're taking a PPI, they don't need to buy every mineral on the shelf.

We need to look at the person.

What medication are they taking? At what dose? For how long? What are their symptoms?

What are they eating? How is their digestion? What does their health history tell us? What do their blood results show? Which nutrients can actually be usefully assessed?

Supplements should have a reason for being there.

Ask for Your Actual Blood Results

Don't be satisfied with simply hearing:

“Your bloods are normal.”

Ask for the actual results.

Look at what was tested. Find out what wasn't tested. Keep previous results so that changes over time can be seen.

If you're taking long-term medication known to affect a particular nutrient, ask whether that nutrient should be monitored.

Depending on the medication and individual circumstances, relevant investigations could include B12, folate, iron studies, vitamin D, magnesium or electrolytes such as sodium and potassium.

Not everyone needs every test. The point is to investigate intelligently rather than guess.

You Are Allowed to Ask Why

If you've been taking a medication for ten years, you are allowed to ask why you're still taking it.

You are allowed to ask what it does, what its long-term effects are, whether it can affect nutrients and what should be monitored.

You are allowed to ask whether the original reason it was prescribed still exists.

You are allowed to ask whether something else could have caused the original symptom.

You are allowed to ask whether there are other appropriate ways of addressing the problem.

And you are allowed to ask whether improving your underlying health could change your treatment requirements.

That doesn't mean abruptly stopping prescribed medication. Some medicines can cause serious withdrawal, rebound symptoms or recurrence of illness if suddenly discontinued, so changes may need to be carefully planned.

But “don't stop suddenly” should never be confused with “don't ask questions.”

We Need to Stop Waiting Until People Are Profoundly Unwell

This is what I want people to take away from this article.

If we know that certain medications can affect nutrient status, tell people before they become deficient.

If monitoring is appropriate, monitor it.

If somebody's diet increases their risk, teach them how to improve it.

If there are safe and appropriate ways of addressing modifiable factors contributing to the original condition, investigate them.

And when another symptom appears, go back and look at the whole person before automatically treating it as another completely unrelated event.

Because sometimes the most important question isn't:

“What else can we give this person?”

It is:

“Why is their body struggling in the first place?”

People deserve more than an ever-growing list of treatments. They deserve information. They deserve monitoring. They deserve prevention. They deserve nutrition and health education. They deserve proper investigation. And above all, they deserve the opportunity to understand their own body and participate in decisions about what happens to it.

So Where Do You Start?

This is exactly why my consultations work differently.

When somebody comes to me with symptoms, I don't simply look at that symptom and ask what can we give them to make it disappear? I want to understand why it is happening.

We go back to the beginning. When did it start? What changed beforehand? What is happening with nutrition, digestion, blood sugar, hormones, thyroid function, sleep, stress and the nervous system? What medications are already being taken? Could they be contributing to symptoms or affecting nutrient status? What do the actual blood results show? Is further testing appropriate?

This is how we begin identifying what may actually be driving or contributing to the symptoms, rather than automatically heading down the road of symptom → medication → new symptom → another medication.

I have seen how chaotic that road can become.

Sometimes what we uncover is surprisingly simple. Other times somebody has a much more complex health picture requiring deeper investigation, testing or input from other healthcare professionals. Either way, my aim is for you to leave with a much clearer understanding of what your body may be trying to tell you and what we can do next.

This is also why I've introduced my new 30-minute Focused Health Consultation for £65. It gives us dedicated time to discuss your main health concern, symptoms, medications and supplements and start looking at the bigger picture.

If we discover that your health picture is more complex and you would benefit from the deeper investigation and ongoing support of my Platinum Programme, your £65 consultation fee can be put towards the cost of the programme.

Because before we simply silence another symptom, I believe we should be asking:

Why is your body producing it in the first place?

And sometimes, asking that question early enough can completely change the direction in which someone's health is travelling.