6 Shocking Fast Food Effects on Body

fast food effects on body

The trend of fast food has increased a lot in the last few years. That’s why the ratio of diseases has also increased significantly in the present era as compared to the old times because fast food effects on body.

Usually, most fast food items are junk foods that are not good for overall health. They lack many important nutrients. These foods are high in calories, sodium, unhealthy fats, and added sugar and have numerous negative effects on mental and physical health.

In today’s busy world, people prefer to order food from any nearby restaurant to avoid the hassle of cooking. People tend to overlook their health because of having the convenience of getting fast food quickly from restaurants.

No matter, how delicious or cheap such foods are, the chronic health issues they cause, cannot be ignored.

However, it’s okay to eat junk food once a week but overdoing it may be harmful. Here are some of the negative effects that junk foods impose on health. Hopefully, going through them would make it easier for you to make a healthy meal plan.

6 Fast Food Effects on Body

Risk of cardiovascular disease and high blood pressure

Fast food contains a high amount of sodium (salt) which may cause water retention and you may feel bloated or swollen after eating such foods.

Sodium-rich foods can also cause high blood pressure which can lead to cardiovascular diseases as well. As hypertension progresses, blood vessels start getting narrower increasing the risk of heart failure.

Saturated fats, high amounts of carbs, sodium, and sugar present in fast foods can alter metabolic factors that aren’t good for heart health.

This imbalanced amount of macronutrients increases the risk for cardiovascular diseases.

For example, excessive intake of salt leads to high blood pressure, high sugar consumption causes weight gain, as well as high saturated fats, increase cholesterol levels in the blood. Ultimately, all of this contributes to aggravating heart disorders.

Digestive problems

Junk food is damaging to our digestive system. A diet high in junk food is significantly low in fiber. And low-fiber diets have a great association with a higher risk of digestive disorders.

Fast foods are processed in a way that they lose important nutrients like fiber, also they have low water content. Enzymes that our stomach needs to digest food, are not present in fast foods.

Too much consumption of fast food slows down the digesting process and causes bloating in the stomach. When we eat unhealthy food, our gastrointestinal tract (GI) fills with air and gas that causes bloating.

The function of the intestine in the stomach is to absorb food. Fiber and water are required for the excretion of foods but fast food lacks these nutrients.

Lack of key nutrients impairs digestion and causes irritability in the intestines. Caffeinated drinks, refined sugar, muffins, chocolates, and sweets aren’t good for the stomach as they dehydrate the body and affect the body’s functions.

Psychiatric discomfort

Mental illness is on the rise with the growing trend of fast food. Saturated and unhealthy fatty foods which are low in fiber and antioxidants cause depression and violent behaviors.

Although some fats and even carbs are considered to be good for the mind excess consumption of them can be harmful to memory speed and flexibility.

That’s why, people especially young adults who eat fast food more than thrice a week, are more likely to suffer from mental illness.

Weight gain

Obesity is one of the biggest health problems in the world. It’s a complicated disease that is mainly caused by a poor diet.

Excessive consumption of fast food and obesity are interlinked. Junk food contains a high amount of ‘’added sugar’’ which simply means extra calories and a very low amount of key nutrients (vitamins, minerals, fiber, antioxidants).

It’s an established fact that the amount of calories we take has a direct impact on our weight. Most fast foods are high in added sugar which is a major cause of obesity.

The popularity of fast food among school-going children has increased significantly. A new study published in the Journal of Pediatric Obesity has found that about 50% of children between the ages of 2 and 10 have problems such as weight gain.

Childhood obesity causes many mental as well as physical illnesses like depression, low self-esteem, type 2 diabetes, etc.

High consumption of foods like French fries, cookies, pizza, ice cream, and sugary breakfast cereals leads to weight gain over time.

Fast food & Integumentary system

Foods rich in minerals, vitamins, and antioxidants like healthy fats, vegetables, and fruits removes dryness and wrinkles from our skin and make it radiant and fresh.

While unhealthy and high sugar foods not only worsen our complexion but also cause acne, itchiness, and inflammation.

Apart from the wastage of money on fast foods, it also affects our appearance as well. There’s no doubt that many genetic and environmental factors contribute to severe acne but in most cases, poor diet is a major cause of getting pimples and rough skin.

Fast food contains added sugar and refined carbs. Carb-rich foods quickly enter the bloodstream and cause a sudden rise in insulin levels. Sudden jumps in blood sugar levels make the androgen hormones more active which causes an increase in sebum production. It contributes to the development of acne by making the skin cells grow faster.

Not only this, but high glycemic foods can also adversely affect our nails and hair. As such foods are high in sodium which leads to skin inflammation and damage to the nails. Spikes in blood sugar levels cause white spots on the nails.


Numerous studies have shown that a major cause of pre-diabetes in youth is their bad food choices. Processed food, frozen snacks, and fast food contain unhealthy ingredients that promote insulin resistance which further leads to type2 diabetes.

Trans fat found in foods like chips, cakes, fries, cookies, muffins, snacks, and sugary beverages is even worse than saturated fat as it raises the levels of triglycerides fats, and bad cholesterols levels.

We’ve already discussed that junk foods break down quickly causing a rapid rise in blood sugar. So our body becomes unable to produce insulin.

Insulin hormone carries glucose out of the blood into our cells which our body uses for energy. But when cells become resistant to insulin, glucose would enter the bloodstream with no proper direction.

Sugar levels rise more than usual. If this condition gets severe, there is a risk of type2 diabetes.

Some tips to eat healthily and stay fit

  • To stay healthy, it’s necessary to eat foods that contain all the important nutrients like minerals, water, vitamins, protein, and carbohydrates. In addition, we should avoid foods with high amounts of sodium, saturated fats, calories, and added sugar.
  • Make a healthy diet plan and eliminate fast food completely or limit it to once a week. Strictly follow the plan to achieve the desired health goals.
  • Eat foods that are rich in vitamins, minerals, protein, and fiber, such as red, blue, and green vegetables (tomatoes, purple grapes, raisins, bell peppers, sweet potatoes, lettuce, spinach, cabbage).
  • Eat good fat like unsaturated fat, monounsaturated and polyunsaturated fats. Foods that are high in healthy fats are vegetable oils, fatty fish, nuts, avocados, whole eggs, etc.
  • Eat nutrient-dense whole-grain foods like brown rice, oatmeal, bulgur, wheat berries, quinoa, millet, rye, whole wheat, corn, and spelled.
  • Avoid sugar-sweetened drinks as much as possible. Drink a lot of water. This way you can significantly cut your calorie intake.

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