Uploaded August 2026 | Updated September 2026, 3 weeks ago
📩 Contact us: talkingwithdocs@gmail.com
Can your supplements actually be doing more harm than good?
Supplements are often associated with better health, correcting deficiencies, and filling nutritional gaps. But when it comes to vitamins and minerals, more is not always better.
In this episode of Talking With Docs, the doctors break down 10 popular supplements that can potentially cause problems when taken in excessive amounts, combined with other products, or used without knowing whether you actually need them.
This does not mean supplements are bad.
If you have a confirmed deficiency, are not getting enough of a nutrient through your diet, have specific nutritional requirements, or have been advised to supplement by a healthcare professional, supplementation may be appropriate.
The problem can begin when people assume:
“If a little is good, a lot must be better.”
The doctors also explain the concept of supplement stacking—getting the same vitamin or mineral from several different products without realizing it. A multivitamin, energy drink, pre-workout, fortified food, and individual supplement could potentially contain overlapping nutrients.
You’ll learn:
• Why excessive vitamin B6 may cause nerve damage, numbness, and tingling
• Why being water-soluble does not automatically make a vitamin harmless in large amounts
• How excessive vitamin D can raise calcium levels in the blood
• Why very high doses of vitamin D are different from normal supplementation
• How concentrated turmeric/curcumin supplements may potentially affect the liver
• Why ingredients that increase turmeric absorption may also increase exposure
• Why St. John’s wort can interact with other medications
• How some supplements may make medications more or less effective
• Why too much zinc can interfere with copper absorption
• How low copper levels can affect red and white blood cells
• Why iron should not necessarily be taken without knowing whether you are deficient
• Why investigating the underlying cause of iron deficiency or anemia can be important
• How high-dose biotin can interfere with certain blood tests
• Why biotin may affect the accuracy of tests used when evaluating a possible cardiac event
• How excessive iodine or kelp supplementation can interfere with normal thyroid function
• Why too much iodine may contribute to either an underactive or overactive thyroid in susceptible people
• Why high doses of vitamin A can become toxic
• Why excessive preformed vitamin A is particularly important to consider during pregnancy
• What red yeast rice has in common with some cholesterol-lowering medications
• Why the amount of active compounds in red yeast rice supplements may not always be predictable
• Why taking several supplements at once can make accidental “stacking” easier
• Why “natural” does not automatically mean harmless
The doctors also discuss several honourable mentions, including niacin, vitamin E, green tea extract, and herbal supplement blends.
The key takeaway is:
The supplement + the dose + what else you’re taking + why you’re taking it all matter.
Taking a supplement because you have a genuine nutritional need is very different from taking increasingly larger doses simply because something is marketed as healthy.
Before adding multiple vitamins, minerals, herbal products, energy drinks, or workout supplements to your routine, it is worth checking the labels to see whether you are unknowingly getting the same nutrients from multiple sources.
And remember to tell your doctor or pharmacist about all of the supplements you take—not just prescription medications.
Supplements can have a place in a healthy lifestyle.
But when it comes to vitamins and minerals, more is definitely not always better.
🎧 Listen on Your Favourite Platforms:
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https://open.spotify.com/show/3OFxEji...
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https://podcasts.apple.com/ca/podcast...
YouTube Music:
• TWD Podcast
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🛑 DISCLAIMER:
This content is for educational purposes only and is not a substitute for professional medical advice. Supplement needs and safe doses can vary depending on age, diet, health conditions, medications, pregnancy, laboratory results, and other factors. Do not stop prescribed supplements or medications based on this video. If you are concerned about a deficiency, supplement dose, medication interaction, or possible side effect, speak with a qualified healthcare professional or pharmacist. Full disclaimer at talkingwithdocs.com.
#supplements #vitamins #vitamind #vitaminb6 #nutrition #healthtips #supplementsafety #healthyaging #wellness #talkingwithdocs
📩 Contact us: talkingwithdocs@gmail.com
Can your supplements actually be doing more harm than good?
Supplements are often associated with better health, correcting deficiencies, and filling nutritional gaps. But when it comes to vitamins and minerals, more is not always better.
In this episode of Talking With Docs, the doctors break down 10 popular supplements that can potentially cause problems when taken in excessive amounts, combined with other products, or used without knowing whether you actually need them.
This does not mean supplements are bad.
If you have a confirmed deficiency, are not getting enough of a nutrient through your diet, have specific nutritional requirements, or have been advised to supplement by a healthcare professional, supplementation may be appropriate.
The problem can begin when people assume:
“If a little is good, a lot must be better.”
The doctors also explain the concept of supplement stacking—getting the same vitamin or mineral from several different products without realizing it. A multivitamin, energy drink, pre-workout, fortified food, and individual supplement could potentially contain overlapping nutrients.
You’ll learn:
• Why excessive vitamin B6 may cause nerve damage, numbness, and tingling
• Why being water-soluble does not automatically make a vitamin harmless in large amounts
• How excessive vitamin D can raise calcium levels in the blood
• Why very high doses of vitamin D are different from normal supplementation
• How concentrated turmeric/curcumin supplements may potentially affect the liver
• Why ingredients that increase turmeric absorption may also increase exposure
• Why St. John’s wort can interact with other medications
• How some supplements may make medications more or less effective
• Why too much zinc can interfere with copper absorption
• How low copper levels can affect red and white blood cells
• Why iron should not necessarily be taken without knowing whether you are deficient
• Why investigating the underlying cause of iron deficiency or anemia can be important
• How high-dose biotin can interfere with certain blood tests
• Why biotin may affect the accuracy of tests used when evaluating a possible cardiac event
• How excessive iodine or kelp supplementation can interfere with normal thyroid function
• Why too much iodine may contribute to either an underactive or overactive thyroid in susceptible people
• Why high doses of vitamin A can become toxic
• Why excessive preformed vitamin A is particularly important to consider during pregnancy
• What red yeast rice has in common with some cholesterol-lowering medications
• Why the amount of active compounds in red yeast rice supplements may not always be predictable
• Why taking several supplements at once can make accidental “stacking” easier
• Why “natural” does not automatically mean harmless
The doctors also discuss several honourable mentions, including niacin, vitamin E, green tea extract, and herbal supplement blends.
The key takeaway is:
The supplement + the dose + what else you’re taking + why you’re taking it all matter.
Taking a supplement because you have a genuine nutritional need is very different from taking increasingly larger doses simply because something is marketed as healthy.
Before adding multiple vitamins, minerals, herbal products, energy drinks, or workout supplements to your routine, it is worth checking the labels to see whether you are unknowingly getting the same nutrients from multiple sources.
And remember to tell your doctor or pharmacist about all of the supplements you take—not just prescription medications.
Supplements can have a place in a healthy lifestyle.
But when it comes to vitamins and minerals, more is definitely not always better.
🎧 Listen on Your Favourite Platforms:
Spotify:
https://open.spotify.com/show/3OFxEji...
Apple Podcast:
https://podcasts.apple.com/ca/podcast...
YouTube Music:
• TWD Podcast
👕 Shop Our MERCH:
https://www.spreadshirt.ca/shop/user/...
❤️ Support Oakville Hospital:
https://donate.oakvillehospitalfounda...
📱 Follow Us:
TikTok: / talkingwithdocs
Instagram:
https://www.instagram.com/talkingwith...
Facebook:
https://www.facebook.com/profile.php?...
🛑 DISCLAIMER:
This content is for educational purposes only and is not a substitute for professional medical advice. Supplement needs and safe doses can vary depending on age, diet, health conditions, medications, pregnancy, laboratory results, and other factors. Do not stop prescribed supplements or medications based on this video. If you are concerned about a deficiency, supplement dose, medication interaction, or possible side effect, speak with a qualified healthcare professional or pharmacist. Full disclaimer at talkingwithdocs.com.
#supplements #vitamins #vitamind #vitaminb6 #nutrition #healthtips #supplementsafety #healthyaging #wellness #talkingwithdocs
