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YouTube·YouTube publication: May 23, 2025

If you’ve ever been on Psych Meds, you’re gonna have some bad deficiencies.

Mind & mood
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Original sourceDan Purser MD on YouTube

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YouTube captions · Unreviewed · Imported 2026-09-24

Captions can mishear medical terms, names, and doses. Check the recording for context. Each timestamp opens that moment on YouTube.

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0:01

What's the third reason you see that they need testing? They've been given psych meds and it doesn't really help. Yeah, because they really don't have a u a they don't really have a fluoxitine deficiency or or a prozac. Yeah, I won't say the name brand. Oh, sorry. Don't delete that name brand. But u or some

0:18

other um amitry or some other they don't have that deficiency. They have a like a B12 or folate or a CoQ10 or something like that. a deficiency that's um really messing with the mood. Lithium deficiency, lithium oritate, not lithium

0:33

carbonate the drug, but in lithium deficiency will cause depression, anxiety. See that a lot.

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Folate, serum — lab reference→Lithium→Vitamin B12 (Cobalamin)→

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A term in this discussion

PURSER WELLNESSLithiumFrom the reading room
Nutrient referenceSep 23, 2026

Lithium

An element found in trace amounts in the environment and used in prescription medicines.

Testing

A term in this discussion

PURSER WELLNESSVitamin B12 (Cobalamin)From the reading room
Nutrient referenceSep 23, 2026

Vitamin B12 (Cobalamin)

Needed for nerve function, DNA production and healthy red blood cells.

Testing

A term in this discussion

PURSER WELLNESSVitamin B9 (Folate)From the reading room
Nutrient referenceSep 23, 2026

Vitamin B9 (Folate)

Supports DNA synthesis and one-carbon metabolism, including the pathway that processes homocysteine.

Testing

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PURSER WELLNESSFolate, serum — lab referenceFrom the reading room
Approved lab referenceFrom the archive

Folate, serum — lab reference

<4.0 suggests deficiency. Recent intake or supplementation may raise serum values.

Testing
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If you’ve ever been on Psych Meds, you’re gonna have some bad deficiencies. — Purser Wellness Explore