Rachel Scheer Nutrition presents
Masterclass replay

Your replay

MCAS & Histamine Masterclass

Watch it here. If you have to stop partway, the player picks up where you left off, and the sections you'll most likely want twice are the bucket and the testing walkthrough.

This replay stays up for 48 hours

Where people go from here

Two different questions, two different conversations

The framework in the training is the same either way. What changes is whose case you're applying it to. If it's your own body, the next step is having someone look at your actual history and testing. If it's your clients, the next step is learning to run the framework yourself. Both start with a conversation, and both are booked below.

Path one

You want answers for yourself

You recognized your own pattern in the training and you want someone to work the case properly rather than handing you another list of foods to avoid.

Book with the practice
Path two

You want to do this work

You kept thinking about clients while you watched. You want the whole framework, not one topic, and a credential behind it.

Book a certification call

Path one

Work with our practice

A call to walk through what's actually going on in your case — your history, what you've already tried, what testing would tell us, and whether working together makes sense. No protocol gets built on a webinar. It gets built on your data.

  • Your reactions keep spreading and the low-histamine diet only took you partway
  • You have a folder of normal results and no explanation that fits all of your symptoms
  • You want the testing done properly and read by someone who works these cases regularly

Path two

Get certified in functional nutrition

Histamine and mast cell cases are one module of a much larger framework. The RSN Institute certification teaches the whole thing — root-cause assessment, functional testing, protocol design, and how to run it with real clients. This call is to see whether the program fits where you're trying to go.

  • You're a coach, nurse, RD, trainer or clinician who keeps meeting cases like these
  • You can get clients partway and want to know what to do when progress stalls
  • You want an accredited credential behind the work, not just another course

Histamine intolerance and mast cell activation syndrome are clinical conditions that require evaluation by a qualified medical provider. Nothing in this training should be used to self-diagnose, to diagnose another person, or to delay seeking medical care.

Do not start, stop, or change any medication, supplement, or dietary approach based on this training. Discuss any change with your own medical provider first.