Naturally Boost Your DAO Enzyme Levels

Supplements to Increase Levels:

  • Omega 3

  • Saturated fats

  • Phosphorus

  • Calcium

  • Zinc

  • Magnesium

  • Iron

  • B12

If you're not someone suffering with Mast Cell Activation Syndrome (MCAS) or histamine intolerance, you have probably never heard of this enzyme before! Well it's super important for breaking down histamine and those suffering from these conditions typically need to supplement as their bodies are overburdened & unable to process it without a little help.

What is DAO?



- Diamine Oxidase is an enzyme that breaks down histamine which is mostly found in the thyroid & thymus, in addition to the small intestine, jejunum & ileum. These areas of the body are typically severely compromised in these conditions due to heavy metals like fluoride which disrupts iodine prodiction in the thyroid & bacterial/Fungal overgrowth resulting in the intestines.

When you don't have enough of this enzyme, it causes histamine levels to rise which results in all those excess histamine symptoms like hives, itching, flushing skin, red eyes, running nose, facial swelling, congestion & headaches.

The best ways to naturally increase DAO levels are to avoid high histamine foods, taking a DAO enzyme & eating DAO boosting foods.

Food Sources High in these Nutrients


Omegas 3 are notorious for helping to bring down inflammation, but do be careful because most supplements on the market are either contaminated or rancid. It's best to get from foods like wild salmon, Mackerel, walnuts, flax/chia seeds.

Saturated fats--> grass fed butter, avocado, pasture raised eggs, & coconut oil.

Phosphorus --> include organ meats, almonds, sunflower seeds & broccoli.

Calcium--> dark leafy greens, beans, lentils, & microgreen like pea shoots & broccoli sprouts are very high in DAO & are best in a smoothie since blending helps activate the enzyme.

Zinc--> grass fed meats, pumpkin seeds, oysters, mussels, & cashews.

Magnesium --> dark chocolate 😉, dark leafy greens, pumpkin seeds, avocado, & mackerel.

Vitamin B12 --> organ meats, grass fed beef, wild salmon, & eggs.

By incorporating these foods along with a low histamine diet & supplementing with a DAO enzyme is a great start to getting those histamine &/or MCAS symptoms under control. What's your favorite sources?