These 6 Nutrient Deficiencies Cause FATIGUE

These 6 Nutrient Deficiencies Cause FATIGUE

This energy supplement has the natural forms of vitamins, especially B1 and B12, as well as magnesium and potassium: 🛒

Everyone could use a little more energy. Find out which nutrient deficiencies cause fatigue and how to boost your energy.

B1 (Thiamine) videos:

0:00 Introduction: How to boost energy
0:10 What causes fatigue?
1:15 Nutrient deficiencies that cause fatigue
8:40 Check out my other video on fatigue!

Having enough energy is vital. The key to reestablishing your energy is to address the root causes of fatigue and the nutritional deficiencies behind fatigue.

There are two top causes of fatigue. The first is a lack of sleep. It doesn’t matter how many supplements you take—you’re still going to be tired if you’re not sleeping.

The second core cause of fatigue is running your body on the wrong fuel (glucose). Burning fat is the most efficient source of energy. To do that, you need to get on the Healthy Keto diet.

Overall, to boost your energy and avoid fatigue, you need to consume a variety of healthy foods and avoid foods that cause fatigue, like sugar and refined carbs. You also need to make sure you’re getting plenty of quality sleep.

Primary nutrient deficiencies that cause fatigue:
1. Vitamin B12
The best source:
• Animal products

2. Folate (B9)
The best source:
• Dark leafy greens

3. Iron
The best source:
• Red meat

4. Vitamin B1 (thiamine)
The best sources:
• Animal products
• Plant products
• Seeds
• Nuts
• Nutritional yeast

5. Magnesium
The best sources:
• Leafy greens
• Animal products
• Plant products

6. Potassium
The best source:
• Leafy greens



Dr. Eric Berg DC Bio:
Dr. Berg, age 56, is a chiropractor who specializes in Healthy Ketosis & 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, and 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 helps increase your awareness of the nutrient deficiencies that cause fatigue. I’ll see you in the next video!


  1. John Mcgilvray on March 28, 2023 at 10:09 am

    Carburetor……..your funny

  2. Sonja Villanueva on March 28, 2023 at 10:11 am

    I have over 5 million red cells and yet suffer from fatigue.

  3. Maria Wisearse on March 28, 2023 at 10:12 am

    Hey Doc, what about vit D? When mine is low I always feel exhausted or could it be a different issue too? Thanks

  4. Betsy A. on March 28, 2023 at 10:13 am

    How about blood type can that be a reason for not enough red cells? RH negative blood type has more white cells than red. I love your videos. Thank you 🙏

  5. heeralify on March 28, 2023 at 10:13 am

    I am vegetarian and B12 deficient. Help!

  6. T. Lukács on March 28, 2023 at 10:15 am

    Vegans dislike this video

  7. Thankful for Everything on March 28, 2023 at 10:15 am


  8. The Mama Bear Life on March 28, 2023 at 10:15 am

    This video has a heavy emphasis on meat. Meat is a carcinogen, & will cause cancer, among other diseases…

  9. Shamsun on March 28, 2023 at 10:16 am

    Thank you so much sir

  10. CuteA on March 28, 2023 at 10:19 am

    Iron, B Vitamins, Mg, Potassium. I also add Zn, C, D3.

  11. Lydia Brockmeyer on March 28, 2023 at 10:20 am

    Your beard makes you look so old.

  12. Kate Hanley on March 28, 2023 at 10:20 am

    Thanks Dr. Berg. You ROCK!🌟🌟🌟🌟

  13. Mariya Davidova on March 28, 2023 at 10:20 am

    Thank you Dr. Berg . You are the best 🙏

  14. Kyle on March 28, 2023 at 10:23 am

    What type of magnesium is best for energy, & cognition? I’ve tried mag l-threonate for a month, & mag malate for a few months. And to sleep/ before bed mag glycinate. I find mag malate to be good, but not sure if it gives me energy or relaxes my muscles. Thoughts?

  15. Crisalida Thomassie on March 28, 2023 at 10:24 am

    Thanks so much for this video. It has clarify some thoughts about getting energized the right way. I take Magnesium Glycinate and B1. It has helped me tremendously with my sleep, anxiety and depression. You are an exceptional human being and one of a kid doctor. Thanks again for keeping us all in the right track. I would like to know how to start the intermittent fasting. I’m 67 and working on lowering my cholesterol. I’m taking medication for now to help me but as soon as it is down I want to do it the healthy way. Many blessings to you and take care. Each video I have watched has helped me so much. I will continue following you closer.

  16. pg on March 28, 2023 at 10:24 am

    What if you have kidney disease? You can’t do Potassium. Some of the leafy greens mentioned for the vitamins you need have potassium. I am anemic, so, I wouldn’t be able to take Magnesium or Potassium. How much MG to take with each vitamin?

  17. Nahida Islam on March 28, 2023 at 10:27 am

    I m always feel tried , I feel so tired that weekend sleep whole day, so tired that don’t like to eat, I have a thalassemia, my B12 , folate , iron all low, taking supplements but I can’t take supplements for iron because of my thalassemia 😞. If I go out I just sit , Little bit fun will make me more tried.

  18. Mad Max on March 28, 2023 at 10:27 am

    Does dried beef…beef jerky count/ also work in place of the raw cooked red meats???

  19. Sonja Villanueva on March 28, 2023 at 10:31 am

    Please, don’t grow a beard!

  20. SurferShaper on March 28, 2023 at 10:33 am

    Someone once said a body at rest tends to stay at rest, AND a body in motion tends to stay in motion! Wise guy for sure

  21. Emma Evans on March 28, 2023 at 10:34 am

    I LOVE learning from you😁You relate it in plains English so it’s easy to understand & remember.
    I’m intrigued if ADHD can be helped with the right nutrients as I’m sure our diet has a huge impact.

  22. khurshid khan on March 28, 2023 at 10:34 am

    I don’t know what happened to me but I feel super tired every time and super sleepy, 🥺

  23. A Tanz on March 28, 2023 at 10:36 am

    What if i eat for one day then not eat the next day?

  24. Kayana on March 28, 2023 at 10:36 am

    Do sardines have b12?

  25. A Tanz on March 28, 2023 at 10:37 am

    Hey i just wrote out how my routine goes and found out that i can do the 20:4

  26. Hadil Ben moussa on March 28, 2023 at 10:38 am

    Why is there no translation in Arabic? I want a translation, please doctor, and thank you. I love your advice very much 🌺🌺

  27. Jenna Goodwin on March 28, 2023 at 10:42 am

    B12 comes from a bacteria in the soil, not animals. They are injected with it, you can get it naturally from sea vegetables and iron from sarsaparilla or burdock root to name a few without suffering

  28. russellla63 on March 28, 2023 at 10:44 am

    I wonder if deficiency in these can cause Chronic Fatigue Syndrome? I have this diagnosis, but haven’t been able to find a doctor that can help me.

  29. JoshPhoenix11 on March 28, 2023 at 10:46 am

    And ideologues that jump on every bandwagon like on the alkaline diet will likely be low stomach acid. The importance of Stomach acid is its own subject but its needed to produce the Intrinsic Factor thats needed to absorb B12.
    Also plant based B12 is pseudoB12, its not real, its an analogue of true Cobalamin and will actually inhibit metabolism of true B12.
    Blood serum B12 tests do not and can not show your functional active levels
    of B12. There is no direct test to show functional B12 levels and you need a doctor who knows how to go about it properly.
    Dont listen to any doctor who does a blood test for B12 and says your levels are fine. ESPECIALLY vegetarians and vegans. The normal B12 blood test is useless for showing what your real B12 levels actually are. Your B12 blood test levels can be normal and you can STILL be dangerously deficient in functional B12, functional B12 is the active B12 thats in a usable form the body needs.
    Doctors dont know any of this. If you’re vegetarian or vegan and just follow what your doctor says then they can very easily be causing you irreversible brain damage from their incompetence. And you should be a hell of a lot more mature, responsible and educated on B12 in the first place so its your own fault as well.
    You dont mess around when it comes to B12.

    *Cyanocobalamin is bad for under-methylators especially if there is depressive
    mental health issues, need to stay away from it.
    Cyanocobalamin is only ok for over-methylators as it uses up excess methyl
    groups. Can use In Bipolar and Schizophrenic Mania episodes along with Niacin
    B3 which will both soak up methyl groups and lower elevated dopamine levels.
    *Methylcobalamin (Methyl B12) is the active form that feeds the
    Methylation Cycle.
    *Adenosylcobalamin (Adeno B12) is the active form thats needed for the
    *Hydroxlcobalamin injections, waste of time.

  30. Pups 7 on March 28, 2023 at 10:47 am

    Thank you. I’m sleeping too much and still so tired. I definitely need to change my diet. I have Hashimotos, nodes on my thyroid and I have an Epstein Barr flare-up.

  31. Curt Rivadeneira on March 28, 2023 at 10:47 am

    I went vegetarian over the pandemic. I was definitely lacking energy. I thought it was because of the lockdown. The lockdown ended and I didn’t have the energy to do anything nor the motivation. I started going to the gym to try to sleep better, have more energy, reduce stress and so on. I was so damn hungry and quickly fading. I went back on animal products. Especially sweet, sweet red meat. I feel great. My mood is great. My energy is high. Meals are far more satisfying. I don’t lose a wink of sleep. The opposite is in fact true. How ashamed I am to think that going plant based was doing myself or anyone else any favors.

  32. John Lawrence on March 28, 2023 at 10:48 am

    Excellent presentation and very simple to understand

  33. Merhawi Brhan on March 28, 2023 at 10:49 am

    Thanks very much sir

  34. Amanda Seaman on March 28, 2023 at 10:50 am

    Hi doc…what supplements can i take to reduce dark spots. I dont drink sugar i drink lots of eater and i try my best to eat healthy.

  35. 5-Min Raw on March 28, 2023 at 10:50 am

    Good Content !

  36. Beverly Phillip on March 28, 2023 at 10:51 am


  37. Flipwire on March 28, 2023 at 10:51 am

    Where does B12 in animals come that dont eat red meat?

  38. Amrit Banga on March 28, 2023 at 10:53 am

    Hi dr. Berg, would love to know what to do about food insensitivities that are causing fatigue… eggs / dairy are so common – why is this and how can we sort this out 😭😭😭😭

  39. Willow Ivory Karlene on March 28, 2023 at 10:55 am

    I support him through and through but personally I believe that you don’t need to eat meat or any animal products in all honestly. I have really great b-vitamin count, best in my life actually. My doctor once told me since I became Vegan that they were actually CONCERNED for me for having too HIGH of iron when before I had LOW iron… the cause? I was eating much more greens such as spinach and lentils, which are both also great source of iron and more than enough if eaten consistently. There is plenty of research out there why Veganism is over all better for you and your body. Just take a moment to think about the food chain you are taught in elementary school… 😵‍💫🙃😬

    Nevertheless, thank you as always for the videos! So helpful 💖

  40. DDS on March 28, 2023 at 10:57 am

    You forgot vitamin d!

  41. Aina Syafiqa on March 28, 2023 at 10:57 am

    Magnesium oil works great if youre deficient in mg

  42. Andreas805 on March 28, 2023 at 10:59 am

    So when they’ve removed all beef from human consumption and replace it with bugs, will you have any idea how much and what nutrients are available in crickets, which is one of the main bug they’re planning on providing 🤣 If I don’t laugh I’ll vomit 🤢..

  43. Thelawless1 on March 28, 2023 at 11:02 am

    i wake up in the night and raid the sugar jar. i eat about 5 -7 table spoons then crawl back to bed. cant sleep other wise. your beard is perfect it totally match your face doc. thank for all your hard work.

  44. J H on March 28, 2023 at 11:02 am

    Nothing causes fatigue like dehydration.

  45. Doxmer on March 28, 2023 at 11:04 am

    its a crime to not show this to your loved ones

  46. The Alien Prawn on March 28, 2023 at 11:04 am

    Yes but how much of each ?

  47. Scott Young on March 28, 2023 at 11:04 am

    How to rectify the intrinsic factor if it’s not functioning?

  48. marie claire Jovani on March 28, 2023 at 11:07 am

    Merci beaucoup Dr Berg

  49. Luis Grasset on March 28, 2023 at 11:08 am

    I dont know if meat with salt is a cause of fatigue or debilitation. Someone feels it?

  50. 7Suave on March 28, 2023 at 11:08 am

    What are some examples of unhealthy grains you shouldn’t eat?