I disagree.
1. "In a low-calorie state, there is more HGH and IGF-1 in the blood and it remains active longer" - FALSE
how it looks in reality:
In a low-calorie state, pulsatile GH secretion does indeed increase, but IGF-1 decreases, it does not grow. This is due to a deficiency of energy substrates and a decrease in hepatic stimulation, because IGF-1 synthesis requires calories, protein and insulin.
In studies in people on a low-calorie diet (especially low-carbohydrate), IGF-1 levels drop significantly, despite increased GH.
there is even scientific evidence confirming this:
"Fasting increases GH secretion but reduces serum IGF-1 due to hepatic GH resistance."
→ (e.g., Ho et al., Endocrine Reviews, 1988)
2. "Insulin blunts HGH before the liver converts it to IGF-1" — FALSE AND CONTRARY TO PHYSIOLOGY
Reality:
Insulin is synergistic with GH in the context of IGF-1 production.
GH and insulin act together on hepatocytes and stimulate IGF-1 expression — insulin does not "block" GH action, but is required for proper GH → IGF-1 conversion.
Insulin may reduce endogenous GH secretion during acute spikes (e.g. after a meal), but this is quite different from blunting the action of GH in the circulation
Science:
"Hepatic IGF-1 synthesis is dependent not only on GH but also on sufficient insulin availability."
→ (Clemmons et al., J Clin Endocrinol Metab, 1998)
3. "Large amounts of insulin blunt hGH before the liver can convert it to IGF-1" — NON-PHYSIOLOGICAL
GH has a half-life of about 15–25 minutes, IGF-1 ~12–15 hours.
GH binds to the GH receptor on liver cells and there activates IGF-1 transcription. This process is not blocked by circulating insulin.
So on the contrary, insulin increases GH activity in the liver because it increases the sensitivity of liver cells to GH.
Moreover, GH in the context of excess insulin becomes more lipolytic and anti-insulin, which leads to a shift of energy substrates toward fat utilization — this is precisely the desired effect in the reduction or recomposition phases.
4. Argumentation style: "I will not defend my theories anymore, look at my photos" - SUBJECTIVE AND NOT SUBSTANTIVE
In bodybuilding, photos are important, but they cannot replace biology and the mechanisms of hormone action.
This approach is a typical example of the argument: "it works for me, so I'm right".
In reality, these effects can be due to many other factors (genetics, androgen doses, training period, diet, rest, etc.), and not to a single theory about IGF-1 or insulin.