The Dangers of a Restrictive Diet and Why They Fail

The Dangers of a Restrictive Diet and Why They Fail

So many “health gurus” who are now promoting restrictive diets. But the truth is, they often end up doing more harm than good. Unknowingly, you are depriving yourself of the nourishment the body needs.

Numerous restrictive diets are promoted right now, like ketogenic, low carb, Atkins, juice cleanses, fasting, low fat, and many others. These are all diets that have different rules and included foods, but there are some things that need to be remembered about them:

  • Limited scientific data is available to back up those claims.
  • Restrictive diets are always short-lived. They do not contribute to long-term health.
  • Rules exist that guide these eating behavior.

Restrictive diets do fail. This is because of the following. 

Eating Less

When you decrease how many calories are added to meals or you skip them altogether, higher body fat storage appears. The demand of your muscles and brain for fuel can easily lead to rebound eating.

This is when you binge eat and choose food sources that are not healthy. The body has basic fuel needs. Not meeting them leads to irritability, fatigue, poor attention span, and many other problems.

There is a reason why people recommend going to a nutritionist or a doctor when you want to lose weight. You need to work out and get the rest the body needs. Your nutrition needs to offer the body all the substances needed to deal with and start weight loss.

In the past, it was said that you just need to consume fewer calories in order to lose weight. Now we know that it is far more important to be sure the calories you consume are the right ones for long-lasting results. 

Carbs Restrictions

Carbs are really important for the body. They are the best energy source available. If you remove them, you can easily end up feeling fatigued, tired and moody. The body ends up breaking down tissue and muscle in order to gain energy.

Even dietary protein can be broken down, which leads to acid-base imbalance, which is known to lead to kidney issues. When you can’t fight psychological and physiological carb cravings,  you overeat.

Remember that the best energy source for your body is given by carbs. Do not believe anyone that tells you something else! That person either does not know what he/she is talking about or is trying to sell you something bad.

Burning fat as an energy source is not actually ideal for your body. It is far better to burn carbs, with fats being secondary in energy generation. 

Removing Meat

When you go meatless, there is a really high possibility you end up with B12 and iron deficiencies. It becomes harder to feel full after a meal and what you eat will not offer fuel for as long as you are used to.

Hunger becomes much more common between your meals and deficiencies are bound to happen unless you use supplements or you eat a lot more than what you are used to.

Obviously, if there is a medical reason why you cannot eat meat, things change. You can lose weight and have a healthy diet without meat. However, in this case, you need to work harder to be sure that the body gets the nutrients it needs.

This means calculating what you eat and even using supplementation. The help of a nutritionist is recommended in this case. 

Liquid Diet Cleanses And Meal Replacements

A huge problem with pre-packaged products is that you cannot learn important skills like cooking, portioning or shopping for food. In the future, this is a huge detriment. Using diet cleanses and meal replacements needs you to calculate everything.

You need to add supplements like vitamins, minerals and even extras like green tea-based supplements.

Previous eating habits end up initially replaced but they do not permanently change. Basically, the discipline you need to eat right is not built. Cleanses can be useful as they help remove toxins from your body.

However, relying on them for fast weight loss is a very bad idea.

If you do decide to use meal replacements and liquid diet cleanses, be sure you read the labels. You have to at least be sure that the products you buy do not include chemicals or other substances that would hurt your weight loss. 


The really quick weight loss that is often seen with fasting is just muscle mass decrease and water loss. The metabolism is lowered while body fat storage is increased. Unfortunately, this is medically dangerous.

It can lead to disordered eating and various eating disorders, besides the obvious risk of being dehydrated. People lose weight and do not care about the side effects but starvation is never the way to go.

In order to lose weight, you do need to eat and you do need to eat right. 


To put things as simple as possible, all restrictive diets deprive your body of nutrients that are needed. If you do not know what you are doing or you do not have an experienced nutritionist in your corner, there is a huge possibility that you are going to end up putting the weight you lose back on.

At the same time, you can be faced with serious health conditions you simply should not risk. The best thing you can do is to maintain a balanced diet that helps you to reach your goals, as opposed to restrictive diets that lead to fast weight loss that is not sustained in the long run.

The last thing that needs to be highlighted is that any diet, restrictive or not, is going to fail to some degree if you just rely on it. Sitting on the couch and eating something does not help you reach your goals.

In order to lose weight, the metabolism needs to be engaged. This does mean some exercising is needed. Fortunately, you do not need to go through a strenuous routine or run marathons.

You just need to fit in as much exercising as you can.

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