1. Most Highly Processed Foods
By far the simplest way to eat healthy and lose weight, is to avoid processed foods as much as possible.
Put simply, if it looks like it was made in a factory, then it's probably bad for you.
2. Candy Bars
Candy bars are incredibly unhealthy.
They are high in sugar, refined wheat flour and processed fats. They are also very low in essential nutrients.
Processed foods like candy bars are generally engineered to be super tasty (so you eat more), and have been designed so that it's very easy to eat them quickly.
A candy bar may taste good and cause some short-term satiety, but you'll be hungry again very quickly because of the way these high-sugar treats are metabolized.
3. French Fries and Potato Chips
Whole, white potatoes are very healthy.
However, the same can NOT be said of the products that are made from them, such as french fries and potato chips.
These foods are very high in calories, and it is easy to eat excessive amounts. Several studies link consumption of french fries and potato chips with weight gain.
These foods may also contain large amounts of acrylamides, carcinogenic substances that form when potatoes are fried, baked or roasted
4. Sugary Drinks
Added sugar is the single worst ingredient in the modern diet.
However, some sources of sugar are worse than others, and sugary drinks are the absolute worst.
When people drink sugar calories, the brain doesn't "register" them as food.
For this reason, people don't automatically compensate by eating less of other foods instead, and end up drastically increasing their total calorie intake.
Sugar, when consumed in large amounts, can drive insulin resistance in the body and is strongly linked to non-alcoholic fatty liver disease. It is also associated with various serious diseases, including type 2 diabetes and heart disease.
Sugary drinks are also THE most fattening aspect of the modern diet, and drinking them in large amounts can drive fat gain and obesity.
5. Most Fruit Juices
Fruit juice is often assumed to be healthy, but this is a mistake.
Many fruit juices are actually little more than fruit-flavored sugar water.
It is true that the juice contains some antioxidants and vitamin C, but this must be weighed against the large amount of liquid sugar.
In fact, fruit juice contains just as much sugar as a sugary drink like Coke or Pepsi, and sometimes even more.