For most people, there are no serious dangers involved in eating one meal a day, other than the discomforts of feeling hungry. That said, there are some risks for people with cardiovascular disease or diabetes. Eating one meal a day can increase your blood pressure and cholesterol.
Conclusion: A single meal per day in the evening lowers body weight and adapts metabolic flexibility during exercise via increased fat oxidation whereas physical performance was not affected.
Many people complain that they gain weight around the holidays, but you'll be happy to know that you can't really gain weight from a single meal or day of overeating.
While it seems perfectly fine to eat two meals a day, such a routine is not suitable for everyone. There are a few groups of people who are advised not to try such a diet plan. It is because such a meal plan may increase their risk of health problems.
While many folks still plan their days around “three square meals,” it turns out the number of meals you eat may not be so important. How you eat those meals is what matters most when it comes to decreasing the risk of heart disease and other health problems that come along with being overweight.
One of the latest trends among celebrities is the “one meal a day” diet (or “Omad”). Fans of Omad include Bruce Springsteen and Coldplay frontman Chris Martin. Many proponents of Omad claim it helps them better manage their weight and keep fit.
However, other studies show that while consuming 1,000 calories a day may result in significant weight loss, most people cannot sustain it and often experience significant weight regain . The reasons include regaining lost muscle mass and increased appetite. Also worth noting is that the human body can adapt.
Not eating means your body doesn't get the sugars it needs to operate properly. This leads to a process called gluconeogenesis, which also causes the loss of appetite. Gluconeogenesis is your body's way of telling itself that blood glucose levels are too low.
OMAD can then start to look a lot like chronic caloric restriction. Although chronic caloric restriction helps with initial weight loss, it poses long-term concerns because it tends to lower resting metabolic rate, which makes weight loss very difficult to maintain.
Nutrition professionals do not advise trying the OMAD diet for any length of time. It's incredibly restrictive and unsustainable and can lead to extreme weight loss, nutrient deficiencies and binging.
If you drastically slash calories and are eating a very low-calorie diet (Think: less than 1,000 calories for women and less than 1,200 calories for men), “starvation mode” can actually be starvation. Starvation from chronic undereating can be counterproductive to weight loss and dangerous to your health.
Most adults need a minimum of 2000 calories to sustain metabolism, muscle activity, and brain function. However, too many calories can lead to weight gain and a variety of diseases.
Safety Concerns. For most people, there are no serious dangers involved in eating one meal a day, other than the discomforts of feeling hungry. That said, there are some risks for people with cardiovascular disease or diabetes. Eating one meal a day can increase your blood pressure and cholesterol.
The one meal a day (OMAD) diet is, simply put, fasting from food for 23 hours a day and eating whatever you'd like for one meal. That meal can range from a double cheeseburger and fries to a more healthful salad loaded with greens, roasted veggies, whole grains, beans, nuts, and seeds.
Bottom line: skipping meals rarely results in weight loss for the long term and it can negatively impact your metabolism. So, consider waking a few minutes earlier to fit in a quick breakfast before your busy day gets away from you.
To begin with, skipping dinner could lead to nutritional deficiency in your body, since you need micronutrients like magnesium, Vitamin B12 and Vitamin D3 for daily functioning. And if you continue this practice for long, you put yourself at the risk of becoming malnourished or developing nutritional deficiencies.
"Across all peer-reviewed research and health practices, three meals a day is a general recommendation to encourage consistent, adequate energy intake," Miluk said.
For the majority of human history, people ate one or two meals per day. The current time-restricted eating patterns like the 16:8 or one meal a day diet (OMAD) mimic this ancient phenomenon. During periods without food, the body evolved to tap into fat stores for energy.