Feeling tired? Start with the basics.
Preview text: The most common signs of B vitamin deficiency, explained.

Using this email in an article? Credit: BioSource Nutra email via They Sent It, with a link to this page. Full-size image
- Subject
- Feeling tired? Start with the basics.
- Preview text
- The most common signs of B vitamin deficiency, explained.
- From
- no-reply@
biosourcenutra.com - Brand
- BioSource Nutra
- ESP
- Klaviyo
- Sent
- Mon Oct 19, 2026, 5:02 PM ET
- Sent to
- biosourcelabs.com, biosourcenutra.com, hcgcomplexdiet.com
- Size
- 46 KB
- Images
- 13
- Links
- 14, 1 of them buttons
- Subject length
- 37 characters
Against BioSource Nutra's usual
Sent in the 5 PM hour, which holds 2% of its emails; 19% arrive in the 11 PM hour. The subject is 37 characters; its average is 39.
Email headers
What the brand's servers put on this email. Our receiving servers, the address we subscribed with and unsubscribe links are left out.
- From
- BioSource Nutra <[email protected]>
- Subject
- Feeling tired? Start with the basics.
- Date
- Mon, 19 Oct 2026 21:02:02 +0000
- Message-ID domain
- klaviyomail.com
- Return-Path domain
- k3.send.biosourcenutra.com
- DKIM signature
- d=shared.klaviyomail.com s=def1; d=send.biosourcenutra.com s=mtd1
- List-Unsubscribe
- Present, one-click
Servers it passed through, newest first
- from (unnamed) by kmta-mta-blue-….servers.clovesoftware.com with SMTP
Other sending headers (names only): X-Mailer-Info-Extra2, X-Mailer-Info, X-Mailer-Info-Extra, X-Kmail-Account, X-Kmail-Message, X-Kmail-Ops, X-Report-Abuse
Sent just before and after
| Oct 22, 2026 5:01 PM | Greek herb salmon with garlicky greens | |
| Oct 21, 2026 11:30 PM | Hey, catch this deal before it’s gone. | |
| Oct 20, 2026 11:29 PM | Shed extra pounds with this powerful combo 💪🏻 | |
| Oct 19, 2026 5:02 PM | Feeling tired? Start with the basics. (this email) | |
| Oct 18, 2026 11:28 PM | The reviews say it best | |
| Oct 16, 2026 11:27 PM | Transform your wellness from the inside out | |
| Oct 15, 2026 5:01 PM | Recipe: Rosemary Garlic Steak with Braised Cabbage |
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