Deconstructing the biological mechanics of fat loss, fasting, and metabolic health. Data-driven protocols for busy people. Zero fluff.

The Lab
Joined August 2026
Replying to @drjamesdinic
Same with the scale in a deficit. Daily weigh-ins bounce around with water, but the weekly average and photos a few months apart show what's really happening.
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THE LABEL SAYS 150. YOU ATE 600. • The calories on a label are per serving, not per bag • A chip serving is about 1 oz, roughly 15 chips • Lots of bags hold 4 servings or more. Family size can hold 8 to 10 • A cereal serving is often about 1 cup. Most bowls fit 2 or more • Check "servings per container" first, then do the math Read the top line. Save this for your next grocery run.
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Replying to @bigleemurali
Weekends for most people I talk to. Five solid deficit days can get wiped out by two loose ones, so the weekly total is what actually counts.
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Replying to @_AshleyRichmond
Worth checking the numbers first too. Track intake and weigh-ins for 2 or 3 weeks, because a lot of stalls are just a smaller deficit than you think.
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Fair question. For most people I'd say about 10 to 25% under maintenance, so roughly 300 to 500 a day. 700 can work for a while if you have more fat to lose, but it gets harder to keep muscle and training quality up.
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PROTEIN IS THE CHEAT CODE NOBODY USES. • Your body burns about 20 to 30% of protein calories just digesting it • Carbs burn about 5 to 10%. Fat burns 0 to 3% • Protein is the most filling macro, so you snack less • Aim for about 0.7 g per pound of body weight a day • Start each meal with a palm or two of protein Same calories. Less hunger. Easier deficit.
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Replying to @gregogallagher
Hitting cals is doing most of the work if fat loss is the goal. The lifts and protein just make sure what comes off is mostly fat.
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Replying to @WORGODICP
Slowing down after the first few weeks is normal, since a lot of that early drop is water and glycogen. Around 2 lb a week is already a solid fat loss pace, and eating that low for long can cost muscle, so I wouldn't chase faster.
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YOUR WEEKEND IS ERASING YOUR WEEK. • A 500 calorie deficit Monday to Friday adds up to 2,500 • Eat 1,250 over maintenance on Saturday and Sunday and it's gone • A big brunch, a few drinks, and a takeaway night can get you there fast • Fat loss runs on the weekly total, not your best days • Keep 1 or 2 planned treats, and keep protein and steps normal Fat loss is a 7 day game. Bookmark this before Friday.
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Replying to @siimland
Both matter is the key part. Losing fat in a moderate deficit while still training gets you leaner and fitter at the same time.
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Replying to @DeanTTraining
Stage level lean like that usually takes months of a steady deficit, not a quick cut. Most people underestimate how long the last few percent takes.
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Replying to @hypertrophydad_
Yep, water and glycogen swings can hide a few days of real fat loss. If you're staying in a deficit, the weekly average will show it.
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Replying to @mikeddonatelli
Good reminder. A few pounds up after a high carb weekend is mostly water, not fat. Judge the trend over the week, not one weigh in.
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Replying to @CoachFHM
Makes sense. Staying that lean takes a deep deficit for weeks, and training drive is usually one of the first things to go.
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Replying to @drjasonfung
Interesting one. UPFs are also just really easy to overeat, and that extra intake is a big part of why they make staying in a calorie deficit so much harder.
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SAME CALORIES. WAY MORE FOOD. • Fullness comes a lot from volume, because a stretched stomach tells your brain you've eaten • Water and fiber add volume for very few calories • 100 calories is about 3 cups of air-popped popcorn, or about 10 chips • A big salad or veggie soup first can cut how much you eat after • Add protein, it fills you up the most per calorie Fill the plate. Not the calorie count.
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Replying to @shashiiyengar
Good point on portions. A snack can look high protein on paper but at 25 to 30 g it is mostly just a few calories of starch. Worth checking the real serving if you are in a deficit.
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Replying to @ShreyaShah22
Protein and fibre at breakfast is a solid move when you are cutting. Feeling full on fewer calories makes a deficit a lot easier to stick to.
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Replying to @AskCoachKev
The moderate deficit part is the big one. You can't spot reduce, so the lower belly usually comes last and only after enough total fat comes off.
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Replying to @joeyyochheim
This is the part that makes a deficit stick. Same calories, but more protein and high volume foods like veggies and potatoes feel like way more food.
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