Dr. Eric Berg Profile picture
Jan 9, 2025 18 tweets 6 min read Read on X
What Happens When Your Body Is Severely Vitamin D Deficient?

These 12 bizarre symptoms might shock you.

You May Never Skip Your Vitamin D Again After Reading This:

1/ Your head starts sweating uncontrollably... 🧵 (THREAD) Image
Strange, but true.

This bizarre symptom shows up in infants, teenagers, and adults. Excessive head sweating is a red flag, especially in children.

But why?
First, 25,000 genes exist in your body.

10% are directly controlled by vitamin D. Your blood tests only show inactive vitamin D — not what's happening in your cells...
When Dr. Hollis presented his findings to top vitamin D researchers, he was attacked for his conclusions.

Why? Because effective vitamin D treatment directly competes with the top-selling drugs on the market.

Here are 10 more vitamin D deficiency symptoms you should know:
2/ Your sleep gets destroyed by night sweats.

You wake up with a soaked pillow despite cool temperatures.

Vitamin D deficiency triggers an overactive immune response, disrupting your body's temperature control center:
3/ Your emotions become a rollercoaster.

Vitamin D directly controls your emotional regulation through complex brain pathways.

Adequate vitamin D levels help protect neurons and reduce inflammation, which can otherwise exacerbate mood disorders.
4/ When you're vitamin D deficient, you run the risk of a dysfunctional immune system.

This may cause symptoms like:

• Autoimmune Reactions
• Recurrent Infections
• Chronic Fatigue
• Inflammation

Here's why:
5/ Your motivation vanishes completely.

Tasks pile up. Everything feels overwhelming.

This isn't laziness — it's your brain's motivation center malfunctioning without vitamin D.
6/ Panic attacks strike unexpectedly.

These aren't just anxiety episodes. Your brain's fear center is malfunctioning from a lack of vitamin D, disrupting crucial serotonin pathways.
7/ A deep ache sets into your bones.

Not sharp pain, but a deep internal ache — especially in your:

• Hips
• Pelvis
• Upper legs
• Lower back

This is osteomalacia beginning — your bones literally softening. Here's how it works:
8/ Your muscles start failing you.

Without vitamin D, calcium can't enter your muscle cells properly.

The result? Progressive weakness, especially in the legs and shoulders. Your muscles physically can't contract.
9/ Your joints become stiff.

Stiffness takes over your knees and fingers as vitamin D is crucial for cartilage and collagen.

10/ Fatigue becomes your new normal.

Your cellular energy factories (mitochondria) are dying. Old viruses can reactivate, draining you further. Image
11/ Your brain feels like it's in a fog.

Decision-making becomes impossible. Focus vanishes.

12/ You can't stop eating yet never feel satisfied.

Without vitamin D, nutrients can't properly enter your cells, leaving you constantly craving more.
How much vitamin D do you need?

40 minutes of sun gives you 20,000 IU of vitamin D3.

For different deficiencies, try:

- 10,000-20,000 IU for general deficiency.
- 50,000 IU of vitamin D3 daily for chronic fatigue.

Toxicity occurs when taking 100,000 IU daily for weeks.
Essential cofactors for vitamin D are magnesium, vitamin K2, zinc, and B6.

Without these, you won't get the full benefits. This is why most vitamin D supplements fail.
Effective vitamin D supplementation threatens a multi-billion dollar drug industry.

The medical establishment actively suppresses this information.

But the science is clear: vitamin D deficiency underlies many modern health problems. Image
A bit about me:

I am the creator of Healthy Keto® & Intermittent Fasting protocols.

I educate millions on nutrition and wellness, empowering over 100M people to make healthier choices.

Join me on a journey to maintain vitality and lose weight while enjoying life. Image
That's a wrap!

What is ONE thing you learned from this thread? Comment below...

And follow me @dr_ericberg to join my mission to provide evidence-based insights to improve your health and longevity.

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More from @dr_ericberg

Jan 1
This one drink before bed can reduce inflammation, balance blood sugar, and support your liver.

It’s not tea. It’s not lemon water.

It’s clove water... and here’s why it works: 🧵
Cloves were once worth more than gold.

Used in China for over 2,000 years as medicine.
During the Black Plague, they were burned in masks and rooms to purify the air for their aromatic, antimicrobial vapors.
Before anesthesia, dentists used clove oil to ease tooth pain.
What gives cloves their remarkable power?

A single compound called eugenol.

Eugenol is:
• Antibacterial
• Antifungal
• Antiviral
• Anti-candida

Its benefits extend far beyond adding flavor to food.
Read 12 tweets
Dec 30, 2025
My daily routine keeps me feeling 18 at age 60.

Here is what I do every day, and why it works:

Wake and Prime: 6:00 a.m. to 7:00 a.m... 🧵
I wake naturally with no alarm and get morning light right away.

If there is no sun, I take 10,000 IU of vitamin D3 with 100 mcg of vitamin K2. Then I drink 16 to 20 ounces of water with a pinch of sea salt.

Sometimes I add a cup of coffee with one scoop of collagen powder.
Fat-Burning Window: 7:00 a.m. to 12:00 p.m.

I continue to fast during this period with no food or snacks.

Light movement or walking helps keep my metabolism steady and active.
This is where most of the fat-burning occurs.
Read 12 tweets
Dec 27, 2025
Not all food is real food.

Many everyday staples are engineered with chemicals and fillers.

Here are 5 of the worst ultra-processed factory foods and why they’re wrecking your health:

1/ Seed Oils
Seed oils are often said to be healthy, but their production process tells a different story.

They’re chemically extracted using hexane (a solvent) at very high temperatures.

Then they’re bleached, deodorized, and refined, turning them into oxidized, rancid fats.
Many seed oils come from GMO crops that may contain glyphosate residue.

They’re highly inflammatory and can damage your arteries, brain, and cells.

Instead, cook with butter, ghee, tallow, coconut oil, or olive oil instead.
Read 13 tweets
Dec 26, 2025
“Oatmeal is the healthiest food you can eat for breakfast.”

That’s what many people believe.

But the truth? Oatmeal isn’t as healthy as you might think. Here’s why: 🧵
I used to eat oatmeal every morning.

It’s marketed as heart-healthy, blood sugar-friendly, even a ‘superfood.’

But after reviewing the research, I found 3 major problems with oatmeal that most people have never heard of.
1/ Oatmeal and blood sugar

Studies often claim oats “improve” cholesterol and glucose.

The catch? They’re only being compared to white bread.

Oats may cause a smaller spike, but they still raise blood sugar.

That’s not truly blood sugar friendly.
Read 12 tweets
Dec 25, 2025
Here’s the ugly truth about avocados (that you won’t like):

I used to think they were the most amazing superfood you could possibly eat.

I even recommended them to my patients…

Until I found this out: 🧵
Many avocados are artificially ripened.

They’re placed in gas chambers and treated with ethylene gas to speed up the process.

But this prevents natural flavor compounds and phytonutrients from developing.

It may look perfect outside, but it lacks quality inside.
Now let’s talk about avocado oil.

A study of 22 major brands revealed alarming findings:

• High oxidation levels (causing inflammation)
• Oils diluted with soy or canola
• Some products contained 0% avocado oil

82% of avocado oil on shelves is not what it claims to be. Image
Read 13 tweets
Dec 23, 2025
Autophagy acts as your body’s anti-aging cleaning system.

It essentially eats the “junk” in your cells and converts it into usable material.

Here are 7 ways to naturally increase autophagy: 🧵
Autophagy occurs inside your cells.

It breaks down old proteins, damaged mitochondria, and accumulated cellular debris.

This process not only removes waste but also converts it into material that your body can use to build healthier cells.
Autophagy is one of the most important processes for cellular renewal.

Your body performs autophagy naturally, but to maximize its benefits, you need the right triggers.

Here are the seven most effective ways to increase it:
Read 14 tweets

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