It's effortless but also a complicated decision to make while planning your diet. You can achieve fat loss by merely cutting 300 to 400 calories from your total calories throughout the day in food. Yes, you will have to keep a record of the calories intake of every Meal you have. Now, the complicated part is to choose what kind of diet is right for you as a low-calorie diet can cause complications of any sort because it makes compromise with your nutrition, it might result in muscle loss, hair loss as a side effect of ketosis, vitamin deficiencies, can elevate some underlying medical conditions, depression and many others. It's our body we are trying to get through a massive changeover in a defined period so taking care of it while doing so is very important to avoid any such problems including a relapse. As a personal trainer from last 11 years, the first thing I would suggest before starting a diet is to get a blood test done to find any nutritional imbalances Along with thyroid, liver and a kidney function test to be on the safer side. A keto diet can mess up a low functioning kidney, forex, even with a calorie deficit diet nutritional balance can be bought with the help of few supplements if needed such as fish oil, flax seed oil multivitamin etc.
Most importantly, a calorie deficit diet does not mean to avoid all fat sources and cut out carbs completely. It is the worst thing you can do with food. All references are as important as each other. TO maintain a healthy metabolism, Immune system, muscle mass and recovery, the recommendation according to American college of sports medicine is out of 100 per cent the food should be divided in 50 per cent sourced from carbs,30 per cent from proteins and 20 per cent from essential fats. It's a vast topic, and all can't be explained here so as for suggesting its better not to create a diet on your own, a certified sports nutritionist or a well experienced personal trainer can help you with it so you can save a lot of time along with your health.