CHICAGO — There is a moment in human development, brief and almost perfect, when the body’s hormonal chemistry is at its peak. It happens around ages 11 and 12, before puberty fully kicks in. Researcher Georgi Dinkov points out that at that stage, boys and girls produce nearly identical levels of pregnenolone and progesterone.
Thyroid hormone T3 also hits its lifetime high. It is, in effect, a biological sweet spot.
That is the benchmark Dr. Joseph Mercola and Dinkov are using to argue that most adults today are running on a depleted system. In a recent discussion, they laid out a case for four specific hormones — progesterone, thyroid hormone T3, DHEA, and pregnenolone — that they believe the vast majority of people could benefit from supplementing. The logic is blunt.
In a perfect world, with optimal health, the body would make everything it needs. Mercola is direct about the gap between ideal and real.
Very few people, including himself, meet that standard. The world is polluted. “Optimal health” is a high bar.
So supplementation becomes a practical fix, not a luxury. Three of the four hormones are available over the counter: progesterone, DHEA, and pregnenolone. Thyroid hormone T3 is the exception.
It requires a prescription. That means regular blood tests — two to four times a year — to keep levels safe.
Overtreatment can trigger hyperthyroid symptoms. That is the risk anyone considering this approach needs to watch for. Dinkov’s observation about the pre-pubertal hormonal profile is worth sitting with.
It reframes the entire conversation. The body at age 11 is not just healthy.
It is optimized. The implication is clear. As we age, we drift from that baseline.
The question is how far, and what we do about it. Mercola frames the problem as straightforward. In an ideal world, no one would need hormone replacement therapy.
But the world is not ideal. Pollution, stress, diet, and aging all take a toll.
The body’s natural production declines. The result is suboptimal levels across the board. That is the reality for most adults, according to Mercola and Dinkov.
The practical upshot for the average reader is this. You do not necessarily need a complicated medical intervention.
Three of the four hormones are available without a prescription. That lowers the barrier. But it also puts responsibility on the individual to understand what they are doing.
Thyroid hormone T3 is the one that requires a doctor’s supervision and regular monitoring. The other three are easier to access, but that does not mean they are trivial. Mercola and Dinkov are not arguing for reckless self-medication.
They are arguing for informed supplementation based on a clear understanding of what the body needs and what it is no longer producing in sufficient amounts. The pre-pubertal baseline gives a target.
The question is how close adults can get to it. The four hormones — progesterone, T3, DHEA, and pregnenolone — are not a complete list of everything the body needs. But Mercola and Dinkov believe they are the ones most people are deficient in.
The evidence, as they present it, is in the decline from that age-11 peak. The body at 40 or 60 is not the same machine it was at 12.
The question is whether supplementation can close the gap. For now, the message is simple. Most adults are walking around with suboptimal hormone levels.
A growing number of health experts argue that supplementation could make a real difference. Mercola and Dinkov have put four specific hormones on the table. The rest is up to the individual and, in the case of T3, a doctor.
