1- Get at least 25 grams of fiber per day.
Because fiber is found in high-carbs foods, a classic low-carb diet is dangerously low in it

2- Eat around 260 carbs grams a day.
The minimum amount needed for brain function according to the institute of medicine of the national academies food and nutrition board is 130 carbs grams daily.

3- Minimise saturated fats.
A number of low-carb diets are high in saturated fats, an unhealthy type of fats that raises "bad" cholesterol level, a known risk for heart disease.

4- Avoid supplements and processed foods.
To their credit, most low-carb diets acknowledges that the diet is deficient in a dozen important nutrients and phyto chemicals and recommend that you take vitamins and mineral supplements to make up for what the diets lack.