Obesity
noun, verbal noun, の adjective
Does being obese mean you're always full? Of course not. But clearly that's what the people who coined the Japanese word for obesity thought... You can see there are some implicit biases in these kanji!
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
まずは自分の肥満度をチェックしてみましょう！
First, check your own level of obesity!
肥満の主な原因は、おそらく運動不足でしょうね。
The major cause of your obesity is probably a lack of exercise.
体重は標準範囲内だけど体脂肪率が高い「隠れ肥満」の人が増えています。
There is an increasing number of people with "hidden obesity" who have a body weight within the standard range but have a high body fat percentage.