Mayo’s verdict: While the ketogenic diet may be recommended for some people with uncontrolled epilepsy, the high fat content — and especially the high level of unhealthy saturated fat — combined with limits on nutrient-rich fruits, veggies and grains is a concern for long-term heart health.
Thereof, why do doctors say Keto is bad?
The keto diet could cause low blood pressure, kidney stones, constipation, nutrient deficiencies and an increased risk of heart disease. Strict diets like keto could also cause social isolation or disordered eating. Keto is not safe for those with any conditions involving their pancreas, liver, thyroid or gallbladder.
Similarly, what do experts say about keto diet?
The experts, on average, rated the keto diet as “minimally effective” in preventing or controlling diabetes. “It is not safe for people with diabetes,” one expert said. Still, some research has shown that cutting carbs and avoiding obesity could keep the chronic disease at bay.
What are the negatives of a keto diet?
- Giving up whole grains, beans, fruits and many veggies can cause nutrient deficiencies and constipation.
- Common short-term side effects include fatigue, headache, brain fog and upset stomach, aka “keto flu.” Long-term health risks include kidney stones, osteoporosis and liver disease.
Research has shown a ketogenic diet can induce rapid weight loss, partly from water loss but also some fat loss. However, the “weight loss effect becomes similar to other dietary approaches after one year”, according to a 2019 review of low-carb diets. Taking in less energy than you burn will lead to weight loss.
The ketogenic diet is a high-fat, moderate-protein, low-carbohydrate diet that can induce weight loss and improvement in glycemic control, but poses a risk of inducing hyperlipidemia, elevation of liver enzymes and onset of fatty liver disease.
According to a recent survey of doctors by Readers Digest, dieters shouldn’t stay on the high-fat, low-carb Keto diet for longer than six months, although one local dietitian said adults shouldn’t be on the diet at all.
Fatty keto options like butter and meat can increase your blood pressure, while a higher protein intake can put added stress on kidneys, because it adds more acid to them and messes with the body’s balance of calcium.
Second, even when energy is not restricted, a ketogenic diet is associated with sharply reduced blood levels of active thyroid hormone.
But if you don’t get enough fat and aren’t in ketosis because you eat too much protein, you could leave the body in a state of energy limbo. “If protein and carbohydrate intake is not managed, the person on a ketogenic diet may not go into ketosis and may just feel completely deprived and hungry,” Shapiro said.
Here are 5 healthy diets that are scientifically proven to be effective.
- Low-carb, whole-food diet. The low-carb, whole-food diet is perfect for people who need to lose weight, optimize health, and lower their risk of disease. …
- Mediterranean diet. …
- Paleo diet. …
- Vegan diet. …
- Gluten-free diet.
Because keto cycling is so new, no relevant studies have examined the benefits and risks yet. Kieffer says cycling in and out of ketosis — eating carbs and then not eating carbs — could be dangerous.
While existing studies strictly controlled the type of fat and foods participants consumed, many who try keto consume high amounts of unhealthy saturated fat, which is associated with an increased risk of heart disease and high lipid levels in the blood.
For most people, the paleo diet is a better choice because it has more flexibility with food choices than keto, which makes it easier to maintain long-term. At the end of the day, the diet that works long-term for you is the best choice.