Weight. Explained.
The science of weight — without the hype. What obesity actually is, why weight is so hard to change, what it does to your metabolism, heart and liver, and which treatments have real evidence. Written by the endocrinologists who manage it every day, and graded honestly by the evidence.
Obesity is a chronic, biologically regulated disease — not a lack of willpower.
The body regulates weight through the brain, gut and fat-tissue hormones, energy expenditure, genetics, sleep, medications, environment and behavior. That is why “eat less, move more” is biologically true and clinically incomplete. We do not swing to the opposite extreme either: nutrition, activity and behavior matter. Weight is multi-causal, and treatment should match what is actually driving it.
Where are you right now?
However you found this page, begin with the situation that sounds like yours.
I want to understand my weight
What obesity actually is — as biology, not willpower — and why bodies defend a higher weight.
Start with the basics →I’m considering a GLP-1
Ozempic, Wegovy, Zepbound, Mounjaro — what they do, what to realistically expect, and the questions that matter.
Understand GLP-1s →My scan mentions “fatty liver”
What that means, why it isn’t the same as liver scarring, and how to tell whether yours needs attention.
Understand fatty liver →I keep regaining the weight
Why regain happens biologically, why it isn’t a moral failure, and what maintenance actually requires.
What regain means →Understand every part of obesity and metabolic health.
Every article states plainly what is established, what is emerging, and what is unproven — graded A–E.
Why Weight Is So Hard to Lose
Set point, appetite hormones, and what happens after you lose weight.
Explore →Semaglutide & Tirzepatide
How the drugs work, realistic numbers with trial context, and what happens if you stop.
Explore →Fatty Liver: Fat vs Fibrosis
FIB-4, FibroScan, and when a fatty liver actually matters.
Explore →Nutrition
Every major diet compared by what sustains and what improves health.
Explore →Exercise, Muscle & Body Composition
Losing fat while keeping functional muscle.
Explore →The Future of Obesity Medicine
Triple agonists, oral drugs and muscle-sparing therapy — honestly staged.
Explore →Understand · Test · Treat · Sustain. In that order.
Understand
Weight history, medications, sleep, eating patterns and goals — before any prescription. A prescription is not a diagnosis.
Test
What actually matters: adiposity, metabolic health, cardiovascular risk, and the liver — including fibrosis, not just fat.
Treat
To a real goal, not a scale number: diabetes remission, cardiovascular risk, fatty liver, sleep apnea, mobility, quality of life.
Sustain
Protect muscle during loss and plan maintenance before starting. Regain is biology; we plan for it.
It would be easier to sell one diet, one drug, or one supplement — or to tell everyone their weight is simply their fault. Neither is honest. We take the biology seriously, look at what the evidence actually says, define what “better” means for you, and measure whether treatment achieved it. You deserve clinicians who will say “there’s no good evidence for that yet” and mean it — and who will also say “this one is worth trying, and here’s how we’ll know.”
We don’t just tell you that you have fatty liver. We ask what it means.
Fat in the liver is common. Scarring — fibrosis — is what changes your future, and the two are not the same. Our metabolic-liver approach separates finding fat from finding risk: steatosis assessment, metabolic risk, FIB-4, and elastography when it is actually indicated.
Physician-scientists. Board-certified endocrinologists. Your doctors.
Every page on W8Experts is authored and reviewed by the physicians who treat obesity and metabolic disease every day.
Darius A. Schneider, MD, PhD
Board-Certified Endocrinologist · ECNU
Physician-scientist in diabetes, obesity and metabolic medicine. Focused on evidence-based, individualized care — treating the person, not the scale.
Mba Uzoma Mba, MD, PhD
Board-Certified Endocrinologist
Physician-scientist in endocrinology and metabolic health, committed to clear, honest answers grounded in the evidence.
Three offices, one standard of care.
9850 Genesee Ave, Suite 470
La Jolla, CA 92037
858-622-7200
8851 Center Drive, Suite 404
La Mesa, CA 91942
619-463-1293
15525 Pomerado Rd, Suite A1
Poway, CA 92064
858-622-7200
Care that takes your questions seriously.
Board-certified endocrinologists. Physician-scientists. Straight answers about what works and what does not.