Short answer first, then the reasoning. On a suppressed appetite the winning strategy is protein density per unit of volume, not per calorie. Isolate powders, Greek yoghurt and cottage cheese, egg whites, lean fish, and tinned tuna all deliver a lot of protein in a small physical volume. Front-load it: appetite is usually least suppressed in the first hours after waking and worst on the day or two after dosing, so get the majority in early in the day and early in the week.
I tracked honestly for two weeks and averaged 68g of protein against a target of about 120g. That gap is the whole problem and no meal plan I have found is written for it.
The question I want answered is whether the RDA is the wrong reference entirely during rapid weight loss, and what the actual target should be.
Happy to be told the question itself is wrong.
kate.chem said:On a suppressed appetite the winning strategy is protein density per unit of volume, not per calorie.
True, and anyone with reduced kidney function needs that target set by a clinician rather than a forum. High protein is safe in normal kidneys and is not automatically safe in impaired ones.
If somebody has the primary source to hand I would rather cite it than paraphrase it.
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Browse GL BiochemDr.SportsMedIN said:I tracked honestly for two weeks and averaged 68g of protein against a target of about 120g.
This matches mine closely enough to be worth saying so. The RDA is the wrong reference and it is worth understanding why. 0.8 g/kg is the intake at which nitrogen balance is not negative in healthy weight-stable adults — a floor for deficiency prevention, not an optimum, and derived in a population that is not in a deficit. In a substantial energy deficit, protein requirement rises because amino acids are being oxidised for energy and because muscle protein synthesis is blunted. The literature on preserving lean mass during weight loss lands around 1.4 to 2.0 g/kg of reference body weight, which is roughly two to two and a half times the RDA.
From the other side of the consultation, briefly.
DEXA scan update relevant to protein intake:
Scanned at months 0, 6, and 12. Here are the body comp numbers:
| Baseline | Month 6 | Month 12 | |
|---|---|---|---|
| Total mass | 278 lbs | 213 lbs | 215 lbs |
| Fat mass | 118 lbs | 78 lbs | 50 lbs |
| Lean mass | 156 lbs | 149 lbs | 152 lbs |
| Body fat % | 39% | 35% | 24% |
Lean mass preserved — actually GAINED 1-2 lbs thanks to progressive overload + 1.6g/kg protein. The protein intake discussion needs to include body comp data, not just scale weight.