It took me quite a while to figure out the common thread to why I was getting sick with horrible vertigo, migraines, nausea and diarrhea after eating loved one’s homemade meals. As someone with chronic illness symptoms, especially surrounding foods, it can be utterly breaking to struggle with finding “safe” food choices and ingredients that won’t cause a reaction later down the road. In this case, the culprit turned out to be black pepper— more specifically, the piperine in black pepper. 

Piperine, the active compound found in black pepper, is widely praised for increasing nutrient absorption and is commonly added to supplements—especially turmeric formulas. While this can be helpful for some people, those with chronic illness may want to take a closer look at how their body responds to it.

Piperine works by increasing intestinal permeability and slowing the breakdown of certain substances in the liver and gut. This can enhance absorption, but in sensitive individuals it may also create inflammatory effects. Some people with chronic symptoms such as fatigue, headaches, skin reactions, digestive discomfort, histamine-related symptoms, or increased sensitivity to supplements report worsening symptoms after consuming black pepper or piperine-containing products.

Why is this so important for my clients to consider? Individuals dealing with chronic inflammation, mast cell activation, gut dysfunction, liver stress, or multiple chemical and food sensitivities don’t always benefit from methods used to increasing absorption. If the body is already struggling to process toxins, chemicals, or inflammatory compounds, “absorbing more” can sometimes add another layer of stress to it. 

I want to be clear in saying that piperine isn’t harmful for everyone— but if food reactions are a part of your daily symptom picture, it’s worth investigating if this common ingredient may be a part of the problem.