Weight Loss Knowledge 5

Question 1

What is 'yo-yo dieting' and why is it considered harmful?

Accepted Answer

Cycles of losing and regaining weight; it can lead to muscle loss and metabolic changes

Answer

Repeated cycles of weight loss and regain can erode muscle mass, worsen metabolic health, and make future weight loss harder.

Question 2

Which macronutrient provides 9 calories per gram, more than twice that of protein or carbohydrates?

Accepted Answer

Fat

Answer

Fat is the most calorie-dense macronutrient at 9 kcal/g, compared to 4 kcal/g for both protein and carbohydrates.

Question 3

What is the glycemic index (GI) and how does it relate to weight management?

Accepted Answer

A ranking of how quickly foods raise blood sugar, with high-GI foods potentially increasing hunger faster

Answer

High-GI foods cause rapid blood sugar spikes and crashes, which can trigger hunger sooner and lead to overeating.

Question 4

Why is protein particularly important for weight loss beyond just building muscle?

Accepted Answer

It increases satiety, preserves lean mass, and has a high thermic effect

Answer

Protein's triple benefit — keeping you fuller longer, protecting muscle during a deficit, and requiring more energy to digest — makes it the most valuable macro for weight loss.

Question 5

What is the term for the number of calories burned through digesting, absorbing, and processing food?

Accepted Answer

Thermic effect of food

Answer

The thermic effect of food (TEF) typically accounts for about 10% of total daily energy expenditure.

Weight Loss Practice Test

Weight Loss Practice Test

Weight Loss Knowledge 5