If you only eat sweet potatoes for one month as mentioned in the question, it's hard to say whether you are fat or not, and malnutrition is certain!
Needless to say, eating only sweet potatoes in January, it is estimated that eating only sweet potatoes for a week will drive us crazy. Although sweet potato has many nutritional advantages, its protein itself is not high-quality, and the body needs high-quality protein to maintain its normal operation. The fat content in sweet potatoes is really low, even negligible, but our brains and bodies need fatty acids, especially essential fatty acids. This extreme behavior of eating only sweet potatoes is hard to say whether you can lose weight within a month, but if you want to eat yourself with malnutrition, it is difficult to defecate (too much dietary fiber can also cause constipation) or not to defecate.
If you want to lose weight, don't tease yourself. The real way to lose weight is to "shut up and open your legs"!
In fact, the tricks of losing weight are really endless, and many wonderful ones simply fall below the three views. For example, the sweet potato in question can lose weight after eating for a month! Eat sweet potatoes when you are hungry for a month, and eat nothing else. It's really hard to say whether you are fat or thin when you eat sweet potatoes until you are full. Sweet potatoes also have calories.
If you want to lose weight, you need to control the overall calories, keep your mouth shut and take your legs. It is the most important thing to develop good living habits by losing weight. No matter how good things are, it is not reliable to eat only or eat more.
To sum up, friends who want to eat sweet potatoes for a month to lose weight, don't tease! It's hard to say whether you are thin or not, but it's true that eating sweet potatoes for a few days is really uncomfortable!