As the name suggests, people eat one meal during the entire day while following this diet. You have to eat one meal in the same four hour window everyday in order to maintain a consistent schedule. The time window can be four hours for beginners as it’s not easy to eat your meal at the exact same time every day. Moving forward, one can reduce this four hour window to one hour.
OMAD diet is just another form of fasting that restricts calories. The diet is theorized to work for weight loss as you eat only once in a day and thus you won’t be able to eat as much as you do when you eat multiple times throughout the day.
Because you eat only once in a day, along with calories you also limit the variety and amount of nutrients and vitamins you eat. Nutritional deficiencies can lead to a variety of health issues like poor digestion, skin disorders and even dementia. Eating less also means your body will have less energy resulting in the feeling of sluggishness, fatigue and dizziness.
The diet has not been studied much, therefore it is harder to say about the long-term consequences it can lead to. One possible long term side effects could be slower metabolism due to lack of consistent food, which might make you gain the lost weight once you stop following the diet. Though there is no doubt that the diet might make you lose weight, that would be only temporary.
It is said that a diet that advises extreme restriction or controls one’s eating habit is not sustainable long term-term or beneficial for one’s mental and physical health. The harsh rules of the diet foster an unhealthy relationship with food.
The only two keys to sustainable weight loss are a healthy diet and regular exercise.
Disclaimer: The views expressed in this article should not be considered as a substitute for a physician’s advice. Please consult your treating physician for more details.