Surprising Side Effects of Eating Olives, Says Science — Eat This Not That


Olives are a popular snack and ingredient in many dishes, but did you know that they can have some surprising side effects? According to recent scientific studies, eating olives can have a variety of positive and negative effects on your health. From helping to reduce inflammation to increasing your risk of developing certain types of cancer, the side effects of eating olives can be both beneficial and detrimental. In this article, we’ll explore the surprising side effects of eating olives, so you can make an informed decision about whether or not to include them in your diet.

Surprising Side Effects of Eating Olives, Says Science

Olives are a popular snack and ingredient in many dishes, but did you know that they can have some surprising side effects? According to recent studies, eating olives can have a range of positive and negative effects on your health. Here’s what you need to know.

The Benefits of Eating Olives

Eating olives can have a range of positive effects on your health. Olives are a great source of healthy fats, which can help to reduce cholesterol levels and improve heart health. They are also a good source of antioxidants, which can help to protect your cells from damage. Additionally, olives are a good source of fiber, which can help to keep your digestive system healthy.

The Risks of Eating Olives

While olives can have some positive effects on your health, they can also have some negative side effects. Eating too many olives can lead to an increase in sodium levels, which can be dangerous for people with high blood pressure. Additionally, olives can be high in calories, so eating too many can lead to weight gain. Finally, olives can contain high levels of histamine, which can cause allergic reactions in some people.

The Bottom Line

Eating olives can have both positive and negative effects on your health. While they are a good source of healthy fats, antioxidants, and fiber, they can also be high in sodium, calories, and histamine. If you are considering adding olives to your diet, it is important to talk to your doctor first to make sure they are right for you.

By now, you’ve most likely heard of the multiple health benefits associated with the Mediterranean Diet. It’s been found to help reduce inflammation, improve your cognitive function, and help you have a healthier heart. And while the diet consists of many different types of foods, one of the most popular Mediterranean Diet snacks is olives!

Whether you love them or hate them, olives are packed full of health benefits, which is why they are such a healthy staple in many types of healthy eating plans. Learn more about the surprising effects of eating olives, and for more healthy eating tips check out Secret Side Effects of Eating Cucumbers.

kalamata olives

Olives are made up largely of healthy fats and contain high levels of a specific fat called oleic acid, which makes up 74% of the fat found in olives. Oleic acid is a monounsaturated fat and has been known to help with inflammation.

Getting more of these “healthy” fats like monounsaturated and polyunsaturated fats in your diet, especially when they replace fats like saturated and trans fats, can significantly help your overall health. You’ll see more specific health benefits related to these fats below.

olives herbs and olive oil

One of the main benefits of getting more healthy fatty acids in your diet is that they can help you improve your brain health and functioning. According to Psychology Today, people who eat plenty of monounsaturated fats often have higher levels of the neurotransmitter acetylcholine, which we need for functions like memory retention and learning.

Olives also contain phenolic compounds, which have found to have a connection to protecting against age-related diseases like Alzheimer’s or dementia.

cheese and olives

While olives and olive oil have many of the same health benefits, one of the specific effects of eating olives is that they contain dietary fiber! In fact, three ounces of canned olives contain around 3.2 grams of fiber, which is a helpful amount for a small snack.

Getting enough fiber in your diet is one of the main keys to a healthy heart, healthy cholesterol levels, good digestion, and longevity as a whole, and olives can be a helpful part in reaching your fiber goals.


Olives are one of the best heart-healthy foods you can snack on because of their high levels of monounsaturated fats. According to a report published in Lipids in Health and Disease, monounsaturated fats were found to help reduce the overall risk of mortality, stroke, and cardiovascular disease in the study’s participants.

Monounsaturated fats can also help you lower “bad cholesterol” (LDL) and raise “good cholesterol” (HDL), which in turn can help you maintain a healthy heart.