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Dr. Berg’s Healthy Keto and Intermittent Fasting Podcast

The #1 Mistake that You Are Making with Supplements

Dr. Berg’s Healthy Keto and Intermittent Fasting Podcast

Dr. Eric Berg

Health & Fitness

4.71.7K Ratings

🗓️ 1 June 2026

⏱️ 22 minutes

🧾️ Download transcript

Summary

Are your supplements actually working? Discover the most common supplement mistakes, plus how to maximize supplement absorption, the importance of supplement timing, why RDAs may not be enough, and more. Stop wasting money on supplements that aren’t delivering the benefits you’re looking for!


🌟 10 biological signals control how you feel every day, but only 1 matters most for YOUR body. Take the free 2-minute quiz to find out: https://drbrg.co/4tO9nV9 


0:00 Introduction: Common vitamin mistakes

0:23 RDA vs. therapeutic dosage

1:20 Vitamin D3 dosage

3:06 Vitamin B1 benefits

4:22 Magnesium supplements

5:28 Zinc supplements

7:40 Selenium supplements

8:34 Diet and supplement absorption

9:13 How to take vitamins with their cofactors

11:12 Coenzyme Q10

14:12 Supplement timing

16:12 Natural vs. synthetic vitamins

18:45 Form of vitamins



👉 Make choosing supplements easier with this free guide: https://drbrg.co/3RThiT0


Try this simple test to uncover hidden maltodextrin in your supplements here:▶️ https://youtu.be/4p3SqQn9izs


The information on a supplement label doesn’t always tell the whole story. The RDA does not always equal the amount needed to correct a deficiency or produce therapeutic benefits. It’s often the bare minimum needed to prevent severe deficiency. Many people aren’t taking enough of key nutrients to see meaningful results.


People often rely on supplements to solve health problems without making dietary changes. A healthy diet is essential for proper supplement absorption and maximizing benefits.


Cofactors are nutrients that work together in biochemical reactions throughout the body. If you’re not taking vitamins with their cofactors, it could be one reason your supplements aren’t working. In nature, vitamins don’t exist in isolation, they come in complexes with other supporting nutrients.


Timing also matters. Some supplements are best taken in the morning, while others may be more beneficial before bed.


The source of a supplement is important as well. While certain synthetic compounds, such as benfotiamine and TUDCA, can be beneficial, many nutrients are best obtained from naturally sourced supplements. It’s also important to avoid unnecessary fillers like maltodextrin.


The form of a vitamin or mineral can significantly affect absorption. For example, many magnesium supplements contain magnesium oxide, which is poorly absorbed and can be hard on the digestive system. Magnesium glycinate is a better choice for absorption and overall effectiveness.



Dr. Eric Berg, DC Bio:

Dr. Berg, age 61, is a chiropractor who specializes in Healthy Ketosis & Intermittent Fasting. He is the Director of Dr. Berg Nutritionals and author of the best-selling book The Healthy Keto Plan. He no longer practices, but focuses on health education through social media.


Disclaimer:

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.

Transcript

Click on a timestamp to play from that location

0:00.0

The number one mistake you are making with your supplements. So many people waste so much money

0:05.5

on supplements, not because they don't work, but simply because they're making mistakes about

0:10.7

taking them. And sometimes, yes, they're taking the wrong thing. But there are really simple

0:14.9

things related to supplements that you should know, especially with absorption, taking the right

0:19.6

amounts, taking the right form.

0:21.7

That's what we're going to talk about today. The first thing I want to cover is when you buy a

0:25.5

supplement and you look at the back of the label, everything on that label is designed off of

0:31.0

what's called an RDA. So what is an RDA? Is it the amount that you really need to satisfy a deficiency? Not necessarily. It's the bare minimum

0:41.0

you need as a survival dosage to prevent a major problem. It is not designed to fortify an optimum

0:50.4

amount. And these amounts are definitely not designed to create a therapeutic effect. So

0:55.6

if you have a major deficiency and you just take the RDA, the bare minimum, you will never

1:01.9

correct the deficiency because it's too small. And this is number one. The dosage that you're taking

1:07.4

is way too small. It's too tiny. Let's just go through some common nutrients

1:14.1

that a lot of people take, and then let's look at what you really need to be taking to create

1:18.4

a therapeutic effect. The first one is vitamin D3. The RDA is between 600 IU, and 800 IU.

1:27.3

That number is ridiculous. It's completely outdated and it's only

1:33.0

designed to prevent rickets, which is a calcium problem in children because their bones are just

1:39.3

too soft. It is not the amount that you need for the immune system, for your brain, for your muscles.

1:45.1

Because there are two systems of vitamin D. I have videos on this. I'm not going to get into it.

1:50.3

But the average person to get enough vitamin D needs at least 10,000 I use of vitamin D3 every single day just to maintain good levels in your blood. And this might not even be a therapeutic

2:03.1

amount. If you have an autoimmune disease or chronic inflammation, you might need 50,000

2:08.8

or even 100,000 IUs. The other thing I want to mention is when you go out in the sun in the

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