Ever wondered why you get hungry? There are many factors that contribute to the desire to eat. There is common consensus that fat cells contribute to our appetite and how hungry we are. It is in turn influenced by our energy expenditure. However the amount of energy you use changes from day to day so scientists wanted to know if something else was responsible. Resting metabolism is the energy that you burn to stay alive. It doesn’t change from day to day, and they discovered that this could influence our hunger.
Resting Metabolism Affects Our Hunger
Scientists used 41 obese men and women to conduct a study on how resting metabolism affected how much they ate. Before measuring their metabolism, they recorded their BMI and how much fat was on their bodies. Over 12 weeks they measured their energy intake. This was done by giving the subjects a number of options of what meals to eat. They had to decide which meal to eat that would fill them up. Hunger was also recorded before and after the meals.
They discovered that there was definitely a relationship between how much fat free mass (the part of the body doesn’t have fat) and their appetite. This was determined by what meals the subjects selected. Or to think of it another way their resting metabolism affected their appetite and how much food they ate.
Weight Training Increases Metabolism
What can cause an increase in metabolism? Strength training is great for increasing muscle mass and decreasing fat which in turns increases metabolism. With the increase in muscle mass and the decrease in fat this study suggests that you would start to get very hungry and increase your intake.
What Do I Do If I’m Hungry?
Just listen to what your body is saying to you. Eat to your hunger and satiety cues. This will mean that you will eat the right amount of food without putting any weight on.
Phillipa Caudwell, Graham Finlayson, Catherine Gibbons, Mark Hopkins, Neil King Erik Näslund, John E Blundell, ‘Resting metabolic rate is associated with hunger, self-determined meal size, and daily energy intake and may represent a marker for appetite’ , The American Journal of Clinical Nutrition, Volume 97, Issue 1, 1 January 2013, Pages 7–14
Aristizabal JC, Freidenreich DJ, Volk BM, Kupchak BR, Saenz C, Maresh CM, Kraemer W, Volek J, ‘Effect of resistance training on resting metabolic rate and its estimation by a dual-energy X-ray absorptiometry metabolic map’, Eur J Clin Nutr. 2015 Jul;69(7):831-6. doi: 10.1038/ejcn.2014.216. Epub 2014 Oct 8.