There are a LOT of people that want to lose weight (fat specifically). In pursuit of this, people constantly chop and change from different diets and systems.
Often it becomes over-complicated and the details that define and differentiate these dietary systems are so insignificant to the general population the question is:
Is it really the ‘diet’ that’s successful or is it just because that particular ‘system’ works better with the individuals lifestyle, beliefs, behaviours, habits and last but not least, physiology?
Is it because the way it’s structured allows them to be compliant?
Is it because it suits their beliefs more or it’s just simply that the merits have been sold to them better. If they’ve bought into it more they will inevitably stick to it more?
Is it because the degree of change required is closer to their current habits, lifestyle and behaviours?
Do they simply enjoy it more than what they’ve done before thus, again making them more compliant?
Let’s look at some examples and see how different they actually are:
This particular individual requires an average of 1600k/cals per day to lose weight and be in a caloric deficit. This accumulates to a weekly total of 11,200 k/cals.
All things being equal and this also being comparative to their output (calories burnt)
Fasting for two days and consuming 2240k/cal daily for 5 days.
VLCD (very low calorie dieting)
Eating 500k/cal for 3 days and eating 2675 k/cal a day.
CBD (Calorie Balanced Diet)
Eating 1600k/cal per day over seven days.
Don’t eat after 6pm
Someone previously eating 5 meals a day at 400/kcal per meal follows the rule of NOT eating after 6pm.
They now eat 4 meals a day @400k/cal each.
Fat free Diet
Someone previously consuming 1600k/cal of protein and carbohydrates per day with an additional 800k/cal of fats. Removes all fats from their diet.
Low carb Diet
Someone previously consuming 1400 k/cal of protein and fats per day with an additional 1000k/cal of carbs. They lower their previous 250g of carbs (1000k/cal) per day to 50g per day (200 k/cal)
So how different are they?
ALL of them achieve the exact same outcome from a caloric perspective and therefore create the same caloric deficit over a seven day period.
The only exception would be through the lowering of carbohydrates in which there would be a larger drop in scale weight due to carbohydrates carrying fluid into cells.
There is but a slight metabolic variance between each system. The largest factor here would be the influence each ‘system’ would have individually on behaviours preceding or proceeding each dietary change.
Many who fast, binge post fast therefore end up eating too much quantitively.
Many who follow VLCD (Very low calorie diets) also end up over consuming afterwards.
In all cases these CAN develop poor patterns and behaviours and negatively alter an individuals relationship with food. They can also compound beliefs due to the correlations they believe caused the resultant weight loss.
They lead themselves to believe specific macronutrients can be bad and that they were the cause of their weight gain.
Some people can regulate intake after the deprivation of food comfortably. Others can’t.
Depends on their relationship with food, previous behaviours and habits.
Diet systems and methods need to be understood and the true art is in deciding what will positively alter someone’s patterns effectively and sustainably.
All diets work if the follow the fundamental rules surrounding caloric intake. How well they work is all to do with application.
So to answer the question.
Which is the best diet in the world?
The one you can sustainably stick to.