Keto diet side effects

The Keto diet has become an increasingly popular diet for those who wish to lose weight. But like all diets, omitting certain foods and sticking to a certain food pattern can have it’s side effects. The Keto diet side effects are no different.

When considering whether or not to do the Keto diet, one needs to take time to look through all the pro’s and con’s to determine whether the diet is the right one for you. Some of the side effects of the Keto diet are dangerous, especially if you are not a healthy person. In contrast, the Keto diet has been known to help people with diabetes and other health conditions. There are good and bad things to each diet, and we are by no means advocating for or against the diet. With that said, here are some of the Keto diet side effects which you need to be aware of before you start this diet.

Keto Flu

Yes, that’s right. You may or may not experience flu symptoms. A runny nose, a headache, feeling a general malaise, nausea, diarrea and muscle aches. The keto flu can last anything from two days to four weeks.

Lack of nutritients

Another one of the Keto diet side effects is cutting out many healthy foods. Amongst those foods are many fruits and vegetables. The Keto diet focuses on vegetables such as Broccoli, Asparagus, Green beans and cabbage. Yellow vegetables are not included. Neither are most fruits. Fruits that are allowed in small quantities on the Keto diet includes strawberries, blueberries, raspberries and avocado. This can lead to a serious lack of nutrients in the body. Do consider using a multivitamin if you do decide to go on the keto diet.


Because of the lack of fruit and fiber in the diet, the keto diet side effects can include serious constipation. It does happen often. For that reason, fiber supplements are extremely necessary when doing Keto. There are many fiber supplements that are available that will compliment the diet

Electrolyte loss

Because of the way the Keto diet is structured, there can be low electrolytes in the body. Frequent urination causes minerals to depleat such as sodium and magnesium. This is dangerous as there is also an increased risk of dehydration. The lack of minerals and water in the body can cause kidney and heart damage. If you are concerned about these keto diet side effects, it is best to first talk to your doctor before attempting to go onto this diet.

Effects on hormones

The keto diet can also have an effect on your hormone levels. This will lead to moodiness, lack in libido and just general erratic behavior. It can also affect your period cycles if you are a lady.


Being on the diet can also increase insomnia. The lack of serotonin produced on the diet will effect your sleep hormone levels and cause many nights of insomnia. Some people are lucky and this does not affect them, but in others, this becomes a serious problem to the point where they feel physically ill during the day from lack of sleep.

Keto breath

For many people on the diet, bad breath is a real problem. That is because the Keto diet produces something called “keto breath”. If you are in close contact with others, you may want to make sure that you have breath mints available at all times and a toothbrush in your purse or briefcase, just in case.

Financial Constraints

The Keto diet can be expensive to maintain, especially if you are on a low cost budget. But the benefits are also huge. It is well worth considering the Keto diet to feel better. There are the unfortunate financial constraints that go along with it as you need to buy vitamin supplements and fiber supplements to keep you going. You may also need a sleeping pill or two.

Before attemting the diet, it is well worth considering the keto diet side effects before you begin. Weigh up the pro’s and con’s and decide for yourself if it’s worth it. But also, more importantly, make sure to talk to your doctor before starting the diet to make sure that your body can handle it.

© 2021, admin. All rights reserved.