Side effects of low carb diets

There is no perfect diet. Low carb diets, in particular, are bound to have side effects because it reduces the body’s intake of carbohydrates, which are usually the primary energy sources of the body.

One of the side effects of low carb diets is the low blood sugar levels. While this may be good for most people, diabetics need to take caution especially if they are taking insulin. Insulin medications should then be adjusted to compensate for diet changes.

However, side effects don’t necessarily mean negative effects. These can be good side effects, such as reduced sugar cravings, increased energy, reduced feeling of being bloated, regular bowel movements, controlled blood pressure levels, loss of excess water retained in the body, and ultimately, loss of unwanted body fat.

During the first week of your low carb diet, you might experience several uncomfortable side effects, such as nausea, dizziness, headaches, lethargy, severe cravings for sugar, constipation, and irritability. However, these will decrease as your body adjusts to your new diet.


The information provided on is designed to support, not replace, the relationship that exists between a patient/site visitor and his/her health professional. This information is solely for informational purposes and does not constitute the practice of medicine. We encourage all visitors to see a licensed physician or nutritionist if they have any concerns regarding health issues related to diet, personal image and any other topics discussed on this site. Neither the owners or employees of nor the author(s) of site content take responsibility for any possible consequences from any treatment, procedure, exercise, dietary modification, action or application of medication which results from reading this site. Always speak with your primary health care provider before engaging in any form of self treatment. Please see our Legal Statement for further information.


What low carb plan have you tried the most?
Atkins Diet
South Beach Diet
No White Diet - no white flour, potatoes, white rice
No sugars, high sugar fruit, starchy vegetables
I created my own low carb plan
Total votes: 1076

User login