Dr Ben Lynch

Dr Ben Lynch Helping you optimize your health through education, genetics and targeted nutritional supplementation. Gain the tools to help your gene perform their best!
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Reading Dirty Genes will launch your understanding of how your genes are impacting your daily life.

A customer asked me whether stevia could be causing frequent urination. It was a question I almost dismissed.So I looked...
05/01/2026

A customer asked me whether stevia could be causing frequent urination. It was a question I almost dismissed.

So I looked into it.

The active compounds in stevia, known as steviol glycosides, possess a steroidal backbone. This chemical structure is similar to that of key hormones like cortisol, testosterone, and estrogen. Steviol glycosides are pharmacologically active and can interact with the body's hormone receptors and enzymes. They are not inert substances.

Research shows stevia inhibits sodium reabsorption in the kidneys, causing increased water and sodium loss in urine, even at typical dietary doses.

A human clinical study using whole stevia extract found significant increases in urinary and salivary cortisol after just one week of consumption — from 91.8 to 125.7 nmol/day — and an elevated cortisol-to-cortisone ratio from 1.73 to 2.65.

Elevated cortisol suppresses ADH, the antidiuretic hormone that tells your kidneys to retain water, creating a second, independent route to excess urination.

People with variants in HSD11B2 or COMT may experience substantially amplified effects from the same dose.

Comment STEVIA, and I'll send you the full video where I explain what you need to know (and avoid) about Stevia.red teas, kombucha, and yogurt. Most people consuming it daily have no idea it produces these effects.

After reviewing the research, I removed stevia from every Seeking Health product. Optimal Electrolyte, Vitamin C Plus, and others were all reformulated.

Stevia, steviol glycosides, stevioside, and rebaudioside A are all derived from the same plant. Any of them on a label means stevia.

Comment STEVIA and I'll send you the full video where I explain what you need to know (and avoid) about Stevia.

04/29/2026

Some of the most popular probiotic strains on the market produce histamine.

Most people have no idea.

If you're dealing with mystery symptoms and taking a probiotic daily, that bottle might be filling your bucket — not fixing it.

04/28/2026

Histamine stacks from the moment you wake up.

Stress. Poor sleep. Your gut. Allergens. Last night's leftovers. All of it fills the bucket before you've touched a single meal.

By dinner, you're already almost full.

That glass of wine isn't the problem. It's the last drop in an already overloaded bucket.

04/27/2026

Everyone's cutting wine, aged cheese, leftovers, and fermented everything thinking that's the fix.

It's not.

Your histamine clearance is overwhelmed, and once you understand the sink analogy, everything clicks.

Histamine isn't your enemy. A backed-up drain is.

Comment DRAIN and I'll send you exactly what's slowing your drain down and how to fix it.

04/24/2026

That pregnancy exhaustion isn't asking for more coffee.

It's your B vitamins and electrolytes running low.

Caffeine masks the signal. The depletion keeps building underneath it.

Your body is telling you something is missing. The fix isn't in the next cup — it's in addressing what's actually running out.

Comment SAFE and I'll send you exactly what supports energy and hydration during pregnancy without masking what your body is trying to tell you.

Your headaches after long video calls aren't stress.Your brain fog that clears after a weekend without your phone isn't ...
04/23/2026

Your headaches after long video calls aren't stress.

Your brain fog that clears after a weekend without your phone isn't coincidence.

There are six documented mechanisms that explain why some people are devastated by EMF exposure — and thirteen gene variants that determine exactly how hard it hits you.

VGCC overactivation. Peroxynitrite cascades. Mast cell degranulation. Glutathione depletion. These aren't theories. They're peer-reviewed mechanisms, and they stack.
Most people can sit in a room full of Wi-Fi routers all day and feel nothing. Others are running out of reserve before noon.

Your genetics determine which group you're in — and what to do about it.

Comment EMF and I'll send you the full video — I cover all six mechanisms, which gene variants make each one worse, and exactly what I use myself every day to reduce my own sensitivity.

04/21/2026

Pregnant and drinking coffee? There's a short window in early development where an enzyme programs which genes your baby's cells turn on and which ones stay silent forever. Caffeine suppresses that enzyme by two-thirds. The window closes, the programming sticks, and there's no going back.

04/20/2026

In adults, caffeine clears your system in 4 to 5 hours.

In a newborn, that number is up to 103 hours.

No enzyme to break it down. No clearance pathway. No way to signal distress.

This is not fearmongering. This is straight biochemistry.

Comment SAFE to receive more details.

04/17/2026

The biggest brain development study ever done followed nearly 12,000 kids from age 9.

What they found in the MRI data is something most OBs are not talking about yet.

Caffeine exposure before birth is showing up in white matter structure, memory, and motor function.

This is not fearmongering. It is data.

Comment SAFE and I will send you the link.

You don't have a DAO problem.You have a methylation problem wearing a histamine costume.DAO gets all the attention. Low-...
04/16/2026

You don't have a DAO problem.

You have a methylation problem wearing a histamine costume.

DAO gets all the attention. Low-histamine diet, DAO supplements before every meal — most practitioners stop there. But DAO handles maybe 15–30% of your histamine. In your gut only.

HNMT is doing 50–80% of the work. It clears histamine from your brain, your tissues, your cells. And it doesn't run on copper or B6.

It runs on SAMe.

Which means if your methylation cycle is sluggish — MTHFR, chronic stress, bad sleep, depleted B vitamins — HNMT has no fuel. Histamine stacks up in your tissues while your DAO test comes back completely normal.

That's why you can eat a perfect low-histamine diet and still wake up with a splitting headache.

The enzyme that matters most isn't the one being sold to you.

Comment DRAIN and I'll send you the link.

You white-knuckled the fast for three days. By day four, the brain fog hit, the irritability hit, and you ate everything...
04/16/2026

You white-knuckled the fast for three days. By day four, the brain fog hit, the irritability hit, and you ate everything in sight.

Your nutritionist calls it no willpower. It's not.

Fasting drops dopamine. Dopamine is built from tyrosine, an amino acid that comes from protein. When you stop eating, the supply stops. But the spending never does.

Six genes control how much dopamine runway you have. TH determines how much dopamine you can produce. MTHFR controls the raw material supply line. DRD2 determines how many receptors you have to catch it. SLC6A3 controls how fast it gets vacuumed back up. MAO-A controls how fast it gets permanently destroyed. And COMT handles cleanup in the prefrontal cortex, the part of your brain that controls focus, decisions, and emotional regulation.

Carry variants across several of these genes and the effect is not additive. It is multiplicative. One variant takes 10% off the top. Four or five and there is almost nothing left. Now try fasting on that.

Same fast. Same discipline. Completely different biology.

I just released a full breakdown on why fasting wrecks some people and not others. The dopamine genetics nobody talks about, which gene type you are, and what to do differently based on your wiring.

Comment CRAVE and I'll send you the link.

04/16/2026

The 200mg rule was based on how a non-pregnant woman metabolizes caffeine. Pregnancy cuts that clearance rate by more than half. The guideline didn't change. Your body did.

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