Weight loss is as simple as “calories in, calories out,” right? Or — gasp — could the reply guys be wrong!? This week, we dig in on the surprisingly complex science behind a seemingly simple calculation.Support us:Hear bonus episodes on PatreonDonate on PayPalGet Maintenance Phase T-shirts, stickers and moreLinks!History of the Calorie in NutritionCaloric Equivalents of Gained or Lost WeightThe Foreign Policy of the CalorieWhy the most popular rule of weight loss is completely wrongTime to Correctly Predict the Amount of Weight Loss With DietingMysteries of Weight LossThe energy balance model of obesity: beyond calories in, calories out“Calories in, calories out” and macronutrient intakeOlympians owe gold standard to a 19th-century chemistCalories on food packets are wrong—it’s time to change thatWhy Does the FDA Recommend 2,000 Calories Per Day?Who Actually Needs a 2,000 Calorie a Day Diet?The Nutrition Facts Label: Its History and UpdatesThanks to Doctor Dreamchip for our lovely theme song!Support the show