While the fundamentals are likely to remain the same (all GLP-1 drugs, for example, work by suppressing appetite, meaning smaller portions are essential), how people react to newer drugs could throw up plenty of surprises
PubMed Central, Freitas, Silvia R., et al
While oral bioavailability may be lower compared to injections, it offers systemic benefits and convenience
Long periods of fasting without sufficient protein intake or dietary variety can lead to nutritional inadequacy, clinical nutrient deficiencies, loss of fat-free mass, and reduced resting energy expenditure [297]
Unfortunately, hormones that act directly within the GH neuroendocrine axis can also degrade functional/physiological interactive relationships thereby exacerbating age-like, maladaptive changes