Contact Metabolic Guide

We're a small team of real humans — we read every message.

We don't have a customer support line for product brands. We're an independent editorial site. If you have a question about a Lumen device or any other product we've reviewed, please reach out to the brand directly. For everything else, we'd love to hear from you.

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Routing your message to the right inbox helps us reply faster. Here's who handles what:

Editorial & Content Questions

Spotted a factual error? Want to suggest a topic we should cover? Disagree with something we wrote and have evidence to back it up?

Product Review Requests

Are you a brand or developer with a metabolic health device or supplement you'd like reviewed? Read our editorial standards before reaching out.

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Interested in an affiliate or content partnership that respects our editorial independence? Tell us about your product, program, and commission structure.

Press & Media

Looking to quote our research or feature us in a publication? Need a comment from our team on a metabolic health story you're working on?

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Message received! Thanks for reaching out. We typically reply within 2–3 business days. Keep an eye on your inbox — including your spam folder just in case.

Response times: Editorial and fact-check requests: 2–3 business days. Partnership inquiries: 5–7 business days. We cannot respond to every review request, but we read them all.

Transparency note: Metabolic Guide earns affiliate commissions when readers purchase products through our links. This does not influence our editorial content. All material connections are disclosed in accordance with FTC guidelines. See our full Affiliate Disclosure.