Something that is heavily debated is how a low carb diet such as the keto diet and the LCHF diet will impact on the cholesterol. Many people have a very strong opinion that the low carb diets that many people today are following will increase your cholesterol and cause heart problems. However many of the people who come with these arguments usually do not have any strong arguments for this. Usually their motivation is that fat is bad for you and fat will increase the cholesterol levels.
There are studies available in this subject but most of these studies that show the bad effect of a low carb diet and the cholesterol are very old studies. Another thing to take into consideration in regards to these studies is that most of them were only done by studying people during a very short time. It will be hard to see the real effect by only looking at people who eat according to a low carb diet for 7 to 14 days.
The two studies that I found that support that a low carb diet such as the keto diet or the LCHF diet are bad for your cholesterol were made in the 1970s and the 1980s. I have not been able to find any studies that were done in the last few years that show that the low carb diet would be bad.
However there are two studies that have been done in recent time and that have also looked at a much bigger sample group. These two studies were also conducted during a much longer time, in one of them for over a year. These kind of studies will show a more correct result than studies that are only performed for 1 to 2 weeks.
In the first study that was conducted in 2004 the scientists compared a low fat, low cholesterol diet with a normal low carb high fat diet. The study included a total of 120 people who all were overweight and also had a high cholesterol level. The study showed that if they were eating according to a low carb diet they did not only loose more weight but they also decreased their cholesterol levels more than the group not eating according to the low carb diet.
In the second study performed in 2006 it was also studied how a low carb diet such as the keto diet or the LCHF diet impacted on people with high cholesterol levels. This study was done on 66 people who all were eating according to a low carb diet for 56 weeks. The results from the study showed that all people in the study got improved cholesterol levels.
There is of course a need for additional studies in this subject and hopefully as more and more people follow a low carb diet there will also be more studies. It will be interesting to see what future studies will tell us about the benefits or drawbacks of a low carb diet will be.