This 166-calorie difference reflects the fact that men typically have 5-10% higher metabolic rates due to greater lean muscle mass and different hormonal profiles. Gaining 10 lbs of muscle increases your BMR by approximately 60 calories/day (420 cal/week). Muscle tissue burns approximately 6 calories per pound per day at rest, while fat tissue burns only 2 calories per pound per day. If using the MyFitnessPal (MFP) baseline method, you start with BMR + daily activity (without exercise) and add back 50-75% of tracked exercise calories to avoid overcompensation. It matters because it’s your baseline for weight management—eat more than your TDEE and you gain weight, eat less and you lose weight, eat at your TDEE and you maintain. Marcus needs to eat like an athlete — 3,500+ calories with 165g protein — to support both his job demands and muscle-building goals. This has happened much more often than not on my workout days recently, likely much due to my TRT dosage increase to 800mg/mo. 2450 Calories (I walk the dog 2x per day, my steps avg. 13,000/day) Before starting TRT Jan ‘21, my level was at 141 ng/dL. 50M 174lbs 5’ 9", 1 Yr on TRT test-cyp @ 200MG injected every 7 days. Genghis Fitness is a fitness and health information platform, not a medical provider. The information on this page does not create a doctor-patient, dietitian-client, or any other professional relationship between Genghis Fitness and the user. This disclaimer applies to all users of this calculator globally. Without a macro split, a calorie goal is just a number — this turns it into a complete blueprint. Yes—eat at your recalculated maintenance TDEE during diet breaks. TEF (Thermic Effect of Food) is the energy required to digest, absorb, and metabolize food. Use calculators as rough starting points only. We also recommend that you use Macro Counting to hit your daily calorie intake and create a calorie deficit in order to lose weight in a healthy and sustainable way. But for a two-pound weight loss, you’ll need to burn 1,000 calories per day. After you punch in the basic info (age, height, weight, daily activity level, and body fat %) required; you’ll see a few different approximate values. And again, if you feel confused about how many calories, how much of each macronutrient, and which foods you should eat to reach your fitness goals, take the Legion Diet Quiz to learn exactly what diet is right for you. This 150-calorie reduction accumulates to 54,750 calories/year—approximately 15.6 lbs of potential fat gain annually if intake isn’t adjusted. Deficits larger than 750 calories risk muscle loss, metabolic slowdown, hormonal disruption, and unsustainable hunger. BMR is the minimum your body needs to stay alive—eating at or below BMR for extended periods triggers aggressive metabolic adaptation, muscle loss, hormonal disruption, and eventual plateaus. Eating 1,200 calories puts you 400 below BMR — you’ll initially lose weight fast (mostly water and muscle), then plateau hard as metabolism adapts. Eat at your TDEE to maintain your current weight. Understanding your TDEE is the foundation of any weight management plan. Get the latest fitness tips, workout plans, and nutrition advice delivered straight to your inbox. Carbs and fats are more flexible and can be adjusted based on your training schedule and personal preference. Third, use the macro breakdown from this calculator as a starting framework. Most people do better losing 0.5 to 1 pound per week rather than pushing for the maximum deficit, because the slower pace preserves more muscle and is far easier to sustain long term. If your weight is stable, the estimate is accurate. Body size and body composition both play a role in your TDEE and this is reflected in the output of our calculator. TDEE is often used by fitness coaches, bodybuilders, and other athletes to determine food requirements and dietary limitations. My main question is, is there a proven way to determine how much to adjust up your TDEE to take into account the increased metabolic rate seen from higher Testosterone levels while on TRT? Your go-to resource for elite fitness, expert nutrition, powerful calculators, and premium powerlifting gear. TDEE is your real-world calorie burn including all daily activity and exercise. BMR is your metabolic rate at complete rest – the minimum calories needed to keep you alive. Real life involves movement, exercise, and daily activities that burn additional calories. The equation accounts for the fact that males typically have 5-10% higher metabolic rates due to greater lean muscle mass. Calculate your Total Daily Energy Expenditure and discover exactly how many calories you burn each day. Every 5–10 lbs (2–5 kg) of weight change or when your activity level changes significantly. Instead, use smaller 100- to 200-calorie adjustments until you start seeing the needle move in the right direction. Women should avoid weighing themselves or taking body measurements while they’re on their period. Furthermore, we don’t live in a vacuum, and occasions arise when we must eat out with friends and family during our physique transformation. It’s no cause for concern if your weight has not changed in a week.