So if your one meal a day consists of highly processed fried foods or too many simple carbs, you’ll feel pretty bad, even if you’re losing weight other risks of fasting may include: feeling. Losing weight eating one meal a day. Eating once per day – fast for 24 hours, under eat during the day, and get your entire daily calorie intake in one meal, every day eat stop eat – completely fast for 24 hours 1-2 times per week (no calories at all), eat a “normal sized” meal at the end of the 24 hour fast. losing weight eating one meal a day Egg diet - diet plan ...