Basal Metabolic Rate
The number of calories you burn lying completely still varies up to 300–400 kcal/day between people of the same size. Knowing your baseline stops the frustration of "why am I not losing weight on 1,500 calories?"
What this measures
How your DNA shapes basal metabolic rate.
Basal metabolic rate is the energy your body burns at rest. UCP2 and UCP3 code for mitochondrial uncoupling proteins — the molecular switches that decide whether energy from food becomes ATP or escapes as heat. ADRB3 codes for a beta-3 adrenergic receptor that controls fat-cell metabolic activation.
Carriers of common UCP2/UCP3 reduced-activity variants are associated with somewhat lower basal energy expenditure — a "fuel-efficient" engine that burns fewer calories at rest. Carriers of the ADRB3 Trp64Arg variant are associated with reduced lipolytic response. The combination shapes how much energy a body burns just being alive.
Cold exposure activates brown adipose tissue and acutely raises uncoupling. Resistance training raises resting metabolic rate by adding metabolically active tissue. Adequate protein at meals raises thermogenesis 20–30% higher than equivalent calories from fat. Sleep deprivation drops BMR within days; chronic under-eating drops it further.
Two people the same height and weight don’t burn the same calories at rest — and the gap is real, not a story someone tells themselves. Which variants you carry decides whether default activity is enough or whether the math requires more deliberate inputs to stay where you want to be.
Basal Metabolic Rate is one specific finding in this system. Your Genomic Lifestyle Optimization Report shows where your variants place you on the macronutrients and metabolic optimization spectrum — and what you can do about it: it renders as a dark card with a color marker calibrated to your variants, opening with the gene mechanism and closing with a practical, mechanism-led recommendation.
Want to see what a real Mosaic dark card looks like? Walk through a sample report →
Questions people ask
About Basal Metabolic Rate.
More from Macronutrients and Metabolic Optimization
APOE Status
Your APOE type decides how your body handles saturated fat and cholesterol. Some versions shrug off butter and steak; others see LDL spike fast. Knowing yours ends the "is saturated fat evil?" debate—for you personally.
Read insight →Fiber Benefit
Some people drop cholesterol and feel full on high-fiber meals. Others barely notice. This tells you whether loading up on oats and vegetables is a game-changer or just extra chewing.
Read insight →Ideal Carbohydrate Intake
Your genes determine whether you thrive on 45–65% carbs or feel better under 30%. Matching intake to your insulin sensitivity and carbohydrate metabolism keeps energy stable and weight easier to manage—without forcing a diet philosophy that doesn't fit your biology.
Read insight →Ideal Protein Intake Amount
Protein needs range from 0.8 g/kg up to 2.2 g/kg for the same goals. Knowing your sweet spot prevents under-eating (slow recovery, muscle loss) or over-eating (expensive urine, stressed kidneys for no reason).
Read insight →Ideal Total Fat Intake Amount
Some metabolisms run beautifully on 35–40% fat; others stall above 25%. Your genes wrote the manual—now you can follow it instead of borrowing someone else's.
Read insight →Monounsaturated Fat Response
Olive oil and avocado can dramatically lower inflammation and improve insulin sensitivity—but only in people with the responsive genotype. This decides whether "extra virgin everything" is worth the premium or just tasty calories.
Read insight →
One test. 108 personalized findings. All yours.
Order your Mosaic kit. Receive your raw genomic data and the full Genomic Lifestyle Optimization Report in 15–20 days.