Which of the following is a true statement about weight loss?
a. to lose weight, a person must take in fewer calories than that person uses.
b. you can safely lose 10 pounds of fat in one week.
c. it's possible to lose 40 pounds of fat in one weekend of diet and exercise.
d. some foods absorb calories and thereby hasten weight loss.

In the question "Which of the following is a true statement about weight loss?" The correct answer is "To lose weight, a person must take in fewer calories than that person uses." (option a) The other statements are not true about weight loss. A pound of fat is about 3500 calories. If you eat 500 less calories than you burn every day, then after a week (7 * 500 = 3500) you will have lost a pound of fat.