“Lost X kg in 90 days.” “Here’s the before-and-after photo.” A familiar format on social media.
HIKYAKU’s Ninety-Day Trial is shaped differently. Not photos — blood.
Draw blood on day zero. Draw it again on day ninety. The difference becomes your true record of those ninety days.
Why ninety days? Why seven markers? Why four passes mean success? The seemingly simple design hides biochemical necessity.
Why “ninety days”
Ninety days seems like a clean “three months” by intuition. But biochemically, there’s a deeper reason.
Because HbA1c reflects roughly three months of history.
HbA1c (hemoglobin A1c) measures the percentage of hemoglobin in red blood cells bound to glucose. Since the lifespan of a red blood cell is about 120 days, HbA1c reflects the average blood glucose over the past 2–3 months.
This means: when an intervention into glucose metabolism begins, at least 60–90 days are needed before the result is fully visible as a blood marker. Thirty or sixty days is too early. Ninety days is the minimum unit at which “the result of intervention fully replaces the marker.”
Furthermore, lipid metabolism turnover is also 60–90 days. Compositional changes in LDL and HDL also become visible over three months.
In other words, “ninety days” is a biochemically meaningful unit of one cycle.
Why “seven markers”
HIKYAKU’s seven specified markers are:
- HbA1c ── 3-month glucose average
- Fasting glucose ── Insulin sensitivity snapshot
- LDL ── “Bad” cholesterol
- HDL ── “Good” cholesterol
- Triglycerides (TG) ── Mirror of recent carbohydrate intake
- AST ── Liver function (cellular damage marker)
- ALT ── Liver function (sensitive to fatty liver)
Together, these seven form “the backbone of ketogenic evaluation.”
| Marker | What it reflects |
|---|---|
| HbA1c / Fasting glucose | Glucose metabolism |
| LDL / HDL / TG | Lipid metabolism |
| AST / ALT | Liver status |
Ketogenic and fasting interventions simultaneously shift the three layers of glucose, lipid, and liver metabolism. With these seven, the total picture emerges.
A full panel reveals more, but these seven are sufficient to evaluate a keto intervention — that is the core of the design.
Why “four passes mean success”
The “4 of 7” criterion looks lenient at first glance. Why not all? Why four?
There are two design decisions here.
“Four” allows for individual variation
The body does not respond uniformly to keto intervention.
For some, HbA1c falls sharply. For others, triglycerides drop dramatically. For some, LDL rises temporarily but particle size shifts toward larger, less atherogenic forms (small-dense LDL → large-buoyant LDL).
Requiring all seven to hit threshold means even excellent practitioners might fail. A more reasonable design respects “the markers that move first are the ones each body is ready to move.”
“Four of the seven moved for me” — that is what passing means.
“Four” as psychological design
Additionally, this is a design against perfectionism.
If all seven were required, someone who hit six would feel they “failed.” The experience of “failure” erodes motivation for the next attempt, as behavioral psychology has shown repeatedly.
Setting it at “four passes” lets most serious practitioners experience success. The remaining three become “areas to polish in the next ninety days” — framed forward, not backward.
This is not pass/fail design. It is design that generates the next journey.
“Witnessing” yourself at ninety days
The true value of the bootcamp is not the verdict itself.
“How did I change over ninety days” — being able to read that in numbers — that experience becomes a memory revisited many times in life.
Someone told for years that their health checkups are “normal,” now reads the fine details of their own body for the first time. The certainty that “my body did move” carries a different weight than any before-and-after photo.
That certainty stays after the bootcamp. The ninety-day self begins witnessing the next ninety-day self. This habit of self-observation may be one of the closest things to the essence of longevity.
180 days of the Hikyaku Pass
When four of seven thresholds are met, the Hikyaku Pass arrives — a 180-day-valid traveler’s permit for the Tōkaidō.
That 180 days is also intentional. It is the right interval for starting the next ninety days.
Complete the bootcamp, live in the 180-day “interlude.” By the time the next ninety days begin, it is also time for the next blood draw.
In other words, the bootcamp is not a one-time event. It is designed as “a unit of ninety days, repeated many times across a life.”
Confucius wrote, “At fifty, the calling becomes known.” Perhaps the calling only becomes visible to those who have witnessed themselves many times over.
To live cleanly and beautifully is, perhaps, to keep letting your blood write your report card.
This article is for informational purposes and is not medical advice. For interpretation of blood test results and dietary changes, consult a physician, registered dietitian, or qualified specialist. Pregnant, breastfeeding individuals, and those with diabetes or eating disorders should consult a physician before participating in this program.