If you are following a low carb diet then you should be eating a high amount of fat, relative to the other two macronutrients. Fat should make up 40-60% of your calories. The amount will vary depending on the carb intake you are shooting for. Here is an example;
- Total calorie intake 1,500
- Carbs @ 20% = 75 grams
- Protein @ 30% = 112 grams
- Fats @ 50%, which is the balanced left over = 83 grams
I think the following helps to visualize the relative macronutrient intakes. Protein should stay about the same while the carbs and fats vary. In fact, you should figure out your protein needs first. A protein intake of about 1.5g/kg (.7g/lb) is a good place to start. As carbs or fats go up the other one should go down.
Here is a low carb view
Here is a high carb view
If you are eating a low carb diet make sure you are eating some good fats, such as whole eggs, dark meats, nuts, seeds, avocados, coconut, and olives. You still need to be aware of the amounts, but these foods should be part of your regular diet. These foods not only have some good fats and taste good but are also loaded with many health promoting nutrients. Bon appetit.