Histamine Intolerance vs MCAS: Understanding the Difference.
Histamine intolerance and MCAS are related but different. Understand the overlapping symptoms.
Luanne Hopkinson (GradDipHumNutr, BSc, ADipNutrMed) is a Histamine Intolerance and MCAS expert, clinical nutritionist, neuroplasticity coach, and founder of Happy Without Histamine.
After navigating her own MCAS and histamine intolerance journey, she now helps women with MCAS and histamine sensitivity stop chasing triggers and start creating real healing.
Through my 5R Histamine Modulation Protocol™, I combine gut microbiome repair with nervous system regulation to help the body feel safe again, so reactions settle, and life expands.
Because healing histamine intolerance isn’t about shrinking your world, it’s about getting back into it.

Live sleep masterclass
Ending the night shift
Exhausted but wide awake at 3am? Join me live to learn why your body stays on alert at night, and practise the Sleep SOS so you know exactly what to do next time you wake.
Wednesday 18 November, 7pm Eastern / 4pm Pacific
Thursday 19 November, 11am Melbourne · Replay included · $27 USD
Save my seat →Your sleep assessment pack arrives the moment you register.