The FIRST Sign of a Magnesium Deficiency Is… (Dr. Berg Explains)

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Sixty-eight percent of people in the US don’t get the required amounts of magnesium from their diet. Learn more about magnesium deficiency and why magnesium is so important.


0:00 Introduction: Magnesium deficiency
0:20 What is magnesium?
1:04 Magnesium deficiency symptoms
2:30 The first sign of magnesium deficiency
2:50 Why you need magnesium
4:19 Magnesium deficiency causes
4:23 The best sources of magnesium
5:53 Magnesium supplements to avoid
6:09 Other causes of magnesium deficiency
7:18 Learn more about how much salad you should be consuming!

Today, I want to cover the first sign of magnesium deficiency. Many people don’t get enough magnesium from their diet, not to mention other factors that deplete magnesium.

Magnesium is a cofactor involved in 350 enzymes. A cofactor is something that is required by an enzyme to work.

Symptoms of magnesium deficiency:
• Cramping
• Twitching
• Arrhythmia
• Osteoporosis
• Osteomalacia
• Insulin resistance
• Insomnia
• High cortisol
• Depression

However, the number one symptom of magnesium deficiency is fatigue.

The top cause of low magnesium is not consuming enough magnesium in the diet. Foods rich in magnesium are vegetables and leafy greens.

Consuming large salads is a great way to get the magnesium you need. But you can also take a magnesium supplement. If you do take a supplement, consider magnesium glycinate.

Other causes of magnesium deficiency:
1. Refined foods
2. Fructose
3. Alcohol
4. Certain medications

Dr. Eric Berg DC Bio:
Dr. Berg, age 58, is a chiropractor who specializes in Healthy Ketosis and intermittent fasting. He is the author of the best-selling book The Healthy Keto Plan, and is the Director of Dr. Berg Nutritionals®. He no longer practices, but focuses on health education through social media.

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Dr. Eric Berg received his Doctor of Chiropractic degree from Palmer College of Chiropractic in 1988. His use of “doctor” or “Dr.” in relation to himself solely refers to that degree. Dr. Berg is a licensed chiropractor in Virginia, California, and Louisiana, but he no longer practices chiropractic in any state and does not see patients so he can focus on educating people as a full-time activity, yet he maintains an active license. This video is for general informational purposes only. It should not be used to self-diagnose and it is not a substitute for a medical exam, cure, treatment, diagnosis, prescription, or recommendation. It does not create a doctor-patient relationship between Dr. Berg and you. You should not make any change in your health regimen or diet before first consulting a physician and obtaining a medical exam, diagnosis, and recommendation. Always seek the advice of a physician or other qualified health provider with any questions you may have regarding a medical condition.

#keto #ketodiet #weightloss #ketolifestyle

Thanks for watching! I hope this increases your awareness of magnesium deficiency and how to get the magnesium you need. I’ll see you in the next video.


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  1. Barbara Timmermans on October 2, 2023 at 10:05 am

    Great timing Dr Berg. I was just going to bed. It’s now 21:00hrs here in Australia 🇦🇺 I needed to hear this. Thank you always for your wonderful contents 🙏

    • Abdosh on October 2, 2023 at 10:35 am

      Hey, I am from Australia too, in Sydney 😊

    • Lucia fiore on October 2, 2023 at 10:42 am

      Im from Sydney Australia 🙂

    • clevo351 on October 2, 2023 at 10:57 am

      Sydney here too!👍

    • fm624colo on October 2, 2023 at 11:06 am

      Cairns here!

  2. andrea maraglio on October 2, 2023 at 10:11 am

    Dr.Berg, he Is what medicine should do,should teach, should explain to people….instead of approving drugs.

    • Daphne on October 2, 2023 at 11:14 am

      The don’t care about people, just money

    • Janet Gies on October 2, 2023 at 1:33 pm

      Yes – Internal Medicine Doctors no nothing about what to eat and not to eat.

  3. Thuy Wu on October 2, 2023 at 10:18 am

    Fantastic topic. Thank you so much Dr Berg, your information is always useful as usual ❤

    • Dr. Eric Berg DC on October 2, 2023 at 11:55 am

      Glad you enjoyed it! Thanks for watching!

  4. CytotoxicTrev on October 2, 2023 at 10:18 am

    I’ll be honest, I’m not eating the gigantic salad bowl most days either, lol 😂. I take some magnesium in the citrate, taurate, and/or glycinate forms at night maybe 1 hour before bed. Magnesium malate can be good in the mornings. Thanks for spreading the Mg gospel, Dr. Berg!

    • bludog on October 2, 2023 at 12:04 pm

      That is very cool, thanks for sharing.

    • Amy Kish on October 2, 2023 at 5:21 pm

      Did you catch what he said which magnesium is the best one?

  5. Linda A on October 2, 2023 at 10:27 am

    Well presented with always great information!! Thanks Dr. Berg!! 🩷

  6. Apocalypse on October 2, 2023 at 10:49 am

    Great video!
    I was definitely mag deficient ( insomnia, IR, cramping, and all the hair had fallen off my legs) but fatigue was not an issue. I was always jacked up on cortisol due to chronic stress.
    Months of salads made me worse with severe bloating. I wasn’t digesting due to lack of HCL. And I wasn’t absorbing the magnesium and other supplements. I cut out salads and did a daily blended cabbage juice instead of salads.
    I started a daily morning routine of soaking my feet in epsom salt for 30 minutes with deep breathing and increased my HCl and supplements with meals.
    Also, IF and low carb. The keto was depleting me.
    No cell phone or blue light after dinner. I walk my dog after dinner and started playing guitar again and reading before bed.
    The hair grew back on my legs, I no longer have cramps, and insomnia is gone.
    It’s an ongoing process but you have to continually find what works for you.
    Thanks again for sharing your knowledge.
    Peace love and blessings.

    • Gary Marquett on October 2, 2023 at 11:15 am

      Blended cabbage juice?

    • Jim on October 2, 2023 at 11:57 am

      What’s IR?

    • Resist the Lizards on October 2, 2023 at 12:00 pm

      @Jim Insulin resistance. If you’ve got a belly you have it. You get it from spiking your blood sugar constantly with high carb/sugar foods like bread and crackers/cookies. Even just eating too many meals snacks.

    • Murray McEwan on October 2, 2023 at 12:53 pm

      What kind of guitar 😉

  7. Alan Hehe on October 2, 2023 at 11:12 am

    A good video would be “how to get enough magnesium from food while avoiding excessive oxalates.”
    I know anyone who’s ever had a kidney stone would be interested. Just a talk on these lectins and oxalates (anti nutrients) and a pro/con of eating them would be interesting.
    I’d also like to know more about why mushrooms need to be cooked to destroy some toxin. This is common knowledge, but when Paul Stamets was on the JRE podcast and this subject came up, he acted like he’d be tortured if he talked about it..which was strange. Many he was just being purposefully cryptic and a bit facetious. Idk.

    • woodenfences on October 2, 2023 at 12:33 pm

      I had an oxalate kidney stone from eating too much greens, so -yes! Excellent suggestion!

    • Nameofthegame on October 2, 2023 at 3:16 pm

      @woodenfencessame, I also had kidney stones due to oxalates but I had no idea that was the reason. When I started my keto diet I ate tons of vegetables especially spinach and pretty quickly started getting pain in my joints and flair ups from old injuries like my knee. When I went full carnivore and cut all the greens all symptoms disappeared. I now have occasional flair ups when I’m dumping oxalates and my electrolytes go bananas.

    • Leon Francis on October 2, 2023 at 3:30 pm

      To answer your question on Stamets, this is what someone said.

      “Mushrooms, even common button mushrooms, contain traces of carcinogenic compounds in raw form. The same toxin, hydrazine, is also found in portobello mushrooms, and shiitake mushrooms contain a naturally occurring formaldehyde. Both chemicals are heat-sensitive and abolished upon exposure to heat.”

  8. Rizzo Roy on October 2, 2023 at 11:27 am

    If you are taking PPI’s your ability to absorb magnesium is greatly affected. I ended up in intensive care for 4 days due to low magnesium. You require magnesium to process potassium. With low potassium my heart was palpitating. Definitely use a supplement if you are over 50. Don’t risk it. Low magnesium is an awful feeling and he is right, like your battery is not charging overnight.

    • bludog on October 2, 2023 at 12:37 pm

      Thank you for sharing that. Sorry you had to go through all that, all the best

    • Remy Lebeau on October 2, 2023 at 1:23 pm

      I’m taking the liquid magnesium supplement that Dr. Berg suggested. But it’s not helping my Atrial fibrillation.

  9. Silverwhitesand on October 2, 2023 at 11:29 am

    Magnesium oil, as a topical mineral spray, which comes from deep inside tge Earth’s crust (magnesium chloride), is said to have the highest absorption potency. Thank you Dr Berg as always for your wonderful work 🌻🐝

    • Deb Greentree on October 2, 2023 at 2:06 pm

      That’s just simply wrong

    • derpestarzt on October 2, 2023 at 2:10 pm

      @Deb Greentree oh wait google said it isn’t? dang… well as someone who’s used both magnesium oil spray and magnesium supplements I can 100% testify to the oil being waaaay more useful. Not only it’s very absorbable through the skin but it also doesn’t have the drawbacks of making your kidneys work or possibly causing imbalances when u take too much, the skin takes what it needs, the oil is IMO the more efficient way to take magnesium (other than actual food, like salads etc)

    • Into The Void on October 2, 2023 at 2:22 pm

      ​@debgreentree gOoGlE… yeah the know all, end all…

    • WakingAngels on October 2, 2023 at 2:50 pm

      @derpestarztwhere in the world are you and where do you buy it??

    • Deb Greentree on October 2, 2023 at 3:13 pm

      Yes I know I’m a chemist

  10. Gloria Washington on October 2, 2023 at 11:45 am

    Thank you Dr. Berg thank you so much for your advice . I have been getting severe cramps in my feet and legs. You are always very informative and helpful.😊

  11. Ahna Ahna on October 2, 2023 at 12:10 pm

    I always appreciate Dr. Bergs info and perspective about health self-care. I take notes and utilize most of the info as I can. I juice a lot of raw veggies. I keep around 3 separate bottles of liquid magnesium, liquid potassium and a trace mineral liquid. I use them as needed. Doc speaks about so many nutrients, etc…. in a way that I can understand and apply. Thks so much Doc.

  12. MJ G on October 2, 2023 at 12:14 pm

    Great video Dr. Berg.
    In addition, certain medications will lower your magnesium level. Just like certain blood pressure medications will lower your potassium levels….long term use of proton pump inhibitors will severely reduce your magnesium levels.

  13. Deadbolthead on October 2, 2023 at 12:25 pm

    Imagine how healthy people would be and what a great world we’d live in, if only our medical system was run by people like Dr Berg and not owned by the people who make the drugs.

    • Jeana Allison on October 2, 2023 at 6:24 pm

      Hallelujah ❤️‍🩹

    • R S on October 2, 2023 at 7:44 pm

      insert berg in leu of stein

  14. Yankee 🌹 Rose on October 2, 2023 at 1:15 pm

    We’re so blessed to have your wealth of knowledge, daily and without payment. Thank for sharing another amazing video Dr. Berg ❤

  15. Jacques on October 2, 2023 at 2:47 pm

    00:00 🧪 Magnesium deficiency is common in the United States, affecting 68% of the population due to dietary insufficiency and other factors.
    02:43 🛌 Fatigue is a significant symptom of magnesium deficiency, as magnesium is crucial for energy production and muscle function.
    03:38 🫀 Magnesium is essential for maintaining a healthy heart by regulating calcium levels and supporting the sodium-potassium pump.
    04:21 🥗 Leafy greens and vegetables, particularly in salads, are excellent sources of magnesium and potassium, helping prevent deficiency.
    05:45 💊 If dietary magnesium intake is insufficient, consider magnesium glycinate supplements, avoiding types like magnesium oxide, hydroxide, and carbonate.

    • aemy ay on October 2, 2023 at 4:59 pm

      Thank you for summarizing it for us!

    • Jacques on October 2, 2023 at 5:27 pm

      @aemy ay you’re welcome

  16. Joseph Burns on October 2, 2023 at 2:53 pm

    I was never explained from doctors about magnesium deficiencies or potassium when I was diagnosed with a-fib 14 years ago. I’ve been doing your healthy keto for 1-1/2 years now. I also use a supplement d-ribos which has and is helping me with those deficiencies along with just OMAD. Thank you Dr. Berg for all your great knowledge and advice!!!! You have been the most help for me while on this amazing journey!!!!

  17. Eva on October 2, 2023 at 4:40 pm

    I want to cry. Because I am happy that I found Dr Berg, that he teaches me and that I get the answers I am looking for. But also because I am sad. This video gives me the answers my doctors didn’t give me for the past 4 years. At least now I know what to work on again, thank you Dr Berg! 🙏🏼

    • Linda Berg on October 2, 2023 at 7:47 pm

      Well said………me too

  18. Randy Vogt on October 2, 2023 at 5:08 pm

    Dr. Berg. The following comment’s are not related to this video but I had to share some personal information with you and how your video’s have helped me so much. January 2023 I had my first A1C test and was told at 6.4 I was pre-diabetic. A month later I was at my Dr’s office and he did another test and I was even higher at 6.6.

    I really didn’t know what to do till my brother suggested I check out your videos.

    The first one I saw was “What would happen if you gave up sugar for two weeks”. That video changed my life. The fact that the medical industry doesn’t share this info is criminal. When you stated that if to much sugar is the problem, then why don’t you stop eating sugar, it just sounded right to me. And that’s exactly what I did. I weighed 270#’s at 6’1″ tall.

    I had a follow up in three months and I was down to 250#’s and the A1C had dropped to 5.7. Still the low end of pre-diabetes but moving in the right direction.

    Today I had a follow up and my A1C was 4.8!!! and my weight was 207! I now read food labels but not once have concerned myself with calories, and have never gone to bed hungry! Thank you so much!!! I look forward to many years of watching your videos!

  19. Celin Garcia on October 2, 2023 at 5:31 pm

    Thank God for Dr. Berg. Great role model of functional medicine. With insightful and cohesive information. 🙏🏼

  20. msmhamilton87 on October 2, 2023 at 6:20 pm

    Wow. I’ve complained about these symptoms to my doctor, and I was never offered magnesium or potassium. You are a wonderful Doctor. Thank you 💞💞..

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