Dr. Eric Berg Profile picture
Oct 11 14 tweets 3 min read Read on X
“Sugar is bad for you.”

Everyone says it.
But almost no one explains why.

Here’s the truth about what sugar really does to your body: 🧵
Most people know sugar causes:
• Weight gain
• Cavities
• Fatty liver
• High blood pressure
• Weakened immunity

But the real damage goes much deeper…

Sugar wrecks your mitochondria, the tiny power plants inside your cells that keep you alive.
Nearly every modern disease traces back to mitochondrial dysfunction.

Mitochondria are the power plants of your cells, turning fuel into usable energy.

When they become damaged, energy production collapses and chronic disease sets in.
When mitochondria fail, you don’t just feel tired.

You set the stage for:
• Cancer
• Alzheimer’s
• Heart disease
• Kidney and liver disease
• Type 2 diabetes

And the primary driver of that mitochondrial damage is sugar and refined carbohydrates. Image
Not all sugar is equal.

Glucose harms mitochondria, but fructose is far worse.

Fructose can only be metabolized by the liver. Sodas, fruit juices, and high-fructose corn syrup overwhelm it quickly.

The result: fatty liver, insulin resistance, and chronic inflammation.
Here is what excess sugar does to your mitochondria:
• Mutates mitochondrial DNA
• Reduces oxygen use (hypoxia)
• Lowers energy production
• Triggers oxidative stress
• Depletes mitochondrial numbers

This is why sugar accelerates disease.

It gets worse…
Sugar inhibits autophagy, your body’s system for recycling old, damaged mitochondria.

Without it, unhealthy cells accumulate, increasing your risk of cancer and accelerating aging.

There’s more…
Sugar also depletes essential nutrients your body needs to function properly.

Excess sugar reduces:
• B1 (thiamine), causing neuropathy, anxiety, and memory problems
• Zinc, compromising mitochondrial function and immunity

This is why diabetics often experience nerve damage.
The science is overwhelming.

A review of 73 meta-analyses covering 8,600 studies linked high sugar intake to 45 negative health effects.

These include diabetes, stroke, dementia, asthma, gout, cancer, and early death.
The sugar industry knows this.

That is why it spends billions lobbying to protect its products.

Sugar lobbies accounts for one-third of all donations from U.S. agriculture, despite making up just 2 percent of farms.

This influence shapes dietary guidelines and food policy.
The good news is you can reverse much of the damage and protect your mitochondria.

Try:
• Low-carb or ketogenic diet
• Intermittent fasting
• Exercise, especially high-intensity
• Quality sleep
• Cold exposure and sunlight to stimulate mitochondria
Sugar is more than empty calories.

It is toxic at the cellular level, damaging mitochondria and depleting energy.

Cutting it out protects your cells and lowers your risk for nearly every chronic disease.

Watch this video to learn more:
A bit about me:

I’m the creator of Healthy Keto® and Intermittent Fasting protocols, helping over 100M people make healthier choices.

Follow me @dr_ericberg for more evidence-based insights to improve your health and longevity.
What is one key takeaway you gained from this thread? Share it in the comments below.

I read every comment and often use them to create future content that matters to you.

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More from @dr_ericberg

Oct 10
What happens if you use rice water on your hair for 2 weeks?

This ancient remedy is rich in nutrients, and modern science is finally catching up.

It can promote growth, reduce frizz, and improve scalp health.

Here’s exactly how to make it… and why it works so well: 🧵
Rice water has been used in Asia for centuries.

But most people today make it the wrong way.

Simply soaking rice in water for a few hours and applying it will not deliver real results.
The key is fermentation.

During fermentation, natural microbes break down the starch in rice water and release bioactive compounds that strengthen the hair and support scalp health.

This process is what transforms plain rice water into an effective remedy.
Read 12 tweets
Oct 9
Potassium deficiency is one of the most common and overlooked health problems today.

If you struggle with muscle cramps, sugar cravings, high blood pressure, or anxiety, low potassium could be the reason.

Here are the symptoms, causes, and how to fix it fast: 🧵 Image
Blood tests often fail to detect potassium deficiency.

That’s because 98% of potassium is stored inside your cells, not in your blood.

This means a standard blood test will usually appear normal unless the deficiency is severe.

That’s why symptoms are the key indicator.
Common symptoms of low potassium:
• High blood pressure
• Muscle cramps
• Sugar cravings
• Constipation
• Muscle weakness
• Irregular heartbeat (arrhythmia, AFib)
• Anxiety and poor sleep

Potassium calms the body. Without it, tension builds up everywhere.
Read 10 tweets
Oct 7
Carbonated water, just bubbly hydration?
…or something much more powerful?

Here’s what the science says… and why it matters: 🧵
I always feel better drinking carbonated water compared to regular water.

I feel calmer.
I stay hydrated longer.
And overall, I just feel better.

I didn’t understand why until recently.
Carbonated water is simply water infused with carbon dioxide (CO2).

When dissolved, CO2 slightly acidifies the water, forming carbonic acid or bicarbonates.

Here’s the fascinating part: CO2 isn’t just bubbles. It plays a critical role in how your body absorbs and uses oxygen.
Read 13 tweets
Oct 4
We’ve used Tylenol for 14 years. It has to be safe… right?

RFK Jr.’s new announcement is making Big Pharma panic… and sparking a nationwide conversation about Tylenol, vaccines, and autism.

Here’s what’s going on: 🧵 Image
Mainstream media is attacking RFK Jr.

They label him “anti-science” and accuse him of spreading “debunked myths.”

But what he is really doing is asking hard questions that Big Pharma does not want answered. Questions about vaccines, Tylenol, and the autism epidemic.
Decades ago, autism affected 1 in 100,000 children.
Today it’s 1 in 31.

The usual excuse is “we’re just better at diagnosing it now.”

But if that were true, we’d find lots of undiagnosed autistic adults in older generations. We don’t.

The rise is real. Something has changed.
Read 15 tweets
Oct 3
Not all supplements are safe.
In fact, some can be harmful to your health.

Here are 10 vitamins you should never take… and why: 🧵
1/ Synthetic Vitamin A
(often labeled as retinyl palmitate or retinyl acetate)

Builds up in the liver and fat tissue.
Linked to toxicity, birth defects, and bone loss.
In skin creams, it can become carcinogenic under UV light.

Better sources: egg yolks, liver, cod liver oil.
2/ Synthetic Beta-Carotene

Manufactured from petroleum byproducts.
In studies, smokers taking it had a higher risk of lung cancer.
Natural carotenoids protect health, synthetic versions can damage it.

Best sources: carrots, leafy greens, sweet potatoes.
Read 14 tweets
Oct 2
Many people struggle with losing muscle as they age.

It is not just about looks. Muscle loss affects metabolism, energy, and overall vitality.

The good news? You can preserve it.

Here are 6 science-backed strategies to help preserve muscle as you get older: 🧵
As we age, both men and women naturally lose muscle in a process called sarcopenia, which means “poverty of the flesh.”

We lose 1 to 2 percent of our muscle each year, which significantly impacts metabolism and mitochondrial function, the energy factories in our muscles.
For women, menopause accelerates muscle loss due to drops in estrogen and progesterone.

Estrogen helps repair and regenerate muscle, supports connective tissue, and maintains collagen.

Progesterone contributes to nerve protection and overall muscle health.
Read 14 tweets

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