12 healthy foods that are still harmful to health

People often think that there are certain healthy foods that they should be comfortable to consume without worry. But the truth is, there are food groups that are both beneficial and harmful to human health. For example, cruciferous vegetables can be high in lead, intoxicating nutmeg and couscous seeds have very little fiber. Let’s take a look at the foods that should be taken into consideration before using them to protect your health.


Cruciferous vegetables, such as kale, can accumulate heavy metals from the soil and are high in lead. If people want to add them to their daily diet, choose products of guaranteed and verified origin.

Rice cake

Rice cakes can be a good substitute for chips and crackers, but while they are low in calories they are still a processed food that lacks vitamins and minerals. Besides, a study also found arsenic in foods made from rice.

Coconut oil

Coconut oil is marketed and marketed as a healthy food, but the truth is it has more than 80% saturated fat, which increases LDL cholesterol and the likelihood of heart disease.

Fresh tuna

Although rich in Omega 3, some researchers have found that fresh tuna from the Atlantic can contain high levels of mercury, leading to poisoning.


Cinnamon is commonly used in teas, sweets and spices. But one of the compounds of this spice is coumarin, which can cause poisoning and cancer.


This is a famous spice with a rich flavor, mainly from Indonesia and India. However, there have been a number of cases of nutmeg intoxication reported. Eating too much of these nuts can cause hallucinations, tachycardia and anticholinergic effects.

The coffee

There are many people who rely on coffee to stay awake, concentrate or use it as a habit during rest. However, studies have shown that drinking too much coffee can aggravate osteoarthritis, joint disease and obesity.

Couscous County

Couscous is inherently low in fiber, so if combined with a high fat diet it can increase fat mass and cause obesity. Couscous is also high in carbohydrates, which can cause blood sugar spikes. If you have diabetes or tend to have it in the future, people should avoid consuming these foods.

Smoked salmon

Smoked salmon is reported to be high in polycyclic aromatic hydrocarbons, which can have toxic, mutagenic and cancerous properties. In addition, the smoking process also pollutes the environment.


Kombucha is a popular fermented beverage for its proven health benefits. But at the same time there are some cases of kombucha poisoning and kidney failure reported after taking it. Experts have suggested that the recommended consumption of kombucha is around 114 g.


If people notice that the potato is green, it is best for everyone to remove it or peel the green. At this time, potatoes are high in glycoalkaloids, a toxic compound that can lead to nausea and vomiting.


If you have a history of poison ivy, everyone should stay away from mangoes. Both have the same substance that can lead to itching, redness, rash, and blisters.

Huong Giang (Follow: Bright Side)



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