What are the four fixes, and does the order matter?

Yes, the order matters. They are listed in the sequence that produces the least friction: the first one is usually the constraint everything else is waiting on, and starting at number three while number one is still broken is why previous attempts stalled. Run them in order, give each one long enough to actually take hold, and resist the urge to add a fifth. The shortest list you will still be following in three months beats the complete one you abandon in two weeks.

How long before I see anything change?

Different markers move on different clocks, and knowing the order in advance is most of what stops people quitting in week three. Subjective things — sleep, energy, appetite stability — usually shift first. Strength follows. Waist and bloodwork are slower and considerably more informative. We do not publish weight-loss figures or timelines, because honest ones do not exist for an individual. What the research does show consistently is that adherence predicts the outcome better than which framework you picked.

Do I need blood work before I start?

You can start the structural parts — sleep window, protein floor, resistance training, reducing ultra-processed food — without any test at all. None of them require a diagnosis to be sensible. Bloodwork earns its place when it changes what you should do, or when a marker needs watching while you change your diet. If any of the items on the right apply to you, get the labs first and involve a clinician.

Can I run this while I am on medication?

Usually, but not unsupervised. Dietary change alters how much medication some conditions need — glucose-lowering drugs in particular — and that adjustment belongs with the person who prescribed them. Tell your prescriber what you are changing and when. It is a two-minute conversation that prevents the one genuinely risky failure mode in an otherwise low-risk protocol.

What happens if I miss days?

Nothing structural. This is a protocol, not a streak — the physiology responds to what you do most weeks, not to an unbroken chain of perfect ones. Missing a training session or a bedtime does not reset anything. The pattern to watch is not the missed day but the missed fortnight. If one of the four fixes keeps sliding, that usually means it was too big a change to start with, so shrink it until it is boringly achievable and rebuild from there.

How is this different from the paid programme?

The research is identical and none of it is held back. What the free protocol cannot do is sequence twelve weeks for you, read your bloodwork, or notice that your logs stopped matching your plan three weeks ago. Most people should run the free protocol first. If it holds and you want structure and human review on top of it, the programme is there — and if the free version is working on its own, we would rather you kept your money.

Starter protocol · free

The Carb Cycling Athlete Protocol

Very active + multiple diets tried. Underfueling is the more likely problem.

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Fixes first

Week-one actions

Citations

01The mechanism

What is actually happening

Very active adults who've tried multiple dietary patterns are often underfueling rather than overeating — the failure mode is different. RED-S (relative energy deficiency in sport) describes the syndrome of low energy availability driving hormonal dysregulation, performance decline, and metabolic adaptation in active populations. Sims 2023 (ISSN female-athlete position) addresses RED-S risk, iron status, and protein timing. Phillips 2011 establishes athlete protein at 1.2–2.0 g/kg distributed across 3–4 meals. The Pontzer 2018 constrained-energy model adds nuance: total energy expenditure plateaus despite increases in activity, so cumulative deficit from training plus 'eat less' produces more profound adaptation than for sedentary populations. The lever for this group is often *increasing* food during training cycles, periodizing carbs around training load, and ensuring adequate protein and recovery — not running another deficit.¹²³⁴⁵

Who this fits

Very active adults who've cycled through multiple diets often underfuel during high training. RED-S risk is real. Adequate fueling beats deficit for most.

Evidence base

This protocol rests on 5 peer-reviewed sources, listed in full further down the page. Where the evidence is mechanistic rather than outcome-based, the text says so.

02Highest leverage first

The four things to fix first

In this order. The first one is usually the constraint everything else is waiting on — starting at number three while number one is still broken is how previous attempts stalled.

01
Fuel adequately for training load
Maintenance + 200-400 kcal on training days. Most athletes who 'can't lose weight' are actually undereating chronically and adapting metabolically. Use the TDEE calculator with very-active multiplier as floor.
02
Carbs around training, not avoidance
Periodize: more carbs on training days (especially around the session), fewer on rest days. Avoid the all-day low-carb pattern unless you're in pre-comp prep with a coach. Glucose-disposal capacity is highest right around training.
03
Protein at 1.8 g/kg
Athletes recovery faster and adapt better at the upper end of the protein range. 1.8 g/kg distributed across 4 meals.
04
Fix the recovery gap
More likely problem than 'too many calories'. Sleep 8+ hours; deload week every 4-6 weeks; address chronic stress; prioritize protein and carbs in the post-workout window.

03Start on Monday

Week one to two

Not a diet plan — a short daily list. Tick them off as you go; the point is to see how much of the protocol you are actually running before you judge whether it works.

Tick as you go

0 of 5 done today

Nothing here is saved or sent anywhere — it resets when you leave the page.

What to track

Evidence about your own body

01Strength/performance progression
02Energy levels 1–10 daily
03Sleep quality
04Weight (look for stability, not loss)

Eight weeks of this gives you data about you, rather than an average from a study population.

04Where to go next

When to consider the full programme

This gets you from zero to functional

The starter protocol is designed to be self-run for two to four weeks. If you want the structured twelve-week curriculum — daily sequencing, meal guidance, lab interpretation by a clinician and a mentor who reads your logs — that is what the Ancestral Reset is.

See the programme Pricing

Related on this site

Other archetypes

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05The receipts

Every claim, sourced

These are the papers this protocol rests on. Follow any of them — we would rather you checked than took our word for it.

References

1.Sims ST et al. (2023). International society of sports nutrition position stand: nutritional concerns of the female athlete. Journal of the International Society of Sports Nutrition. PubMed 37221858
2.Phillips SM, Van Loon LJC (2011). Dietary protein for athletes: from requirements to optimum adaptation. Journal of Sports Sciences. PubMed 22150425
3.Pontzer H et al. (2016). Constrained total energy expenditure and metabolic adaptation to physical activity in adult humans. Current Biology. PubMed 26832439
4.Morton RW et al. (2018). A systematic review, meta-analysis and meta-regression of the effect of protein supplementation on resistance training-induced gains in muscle mass and strength in healthy adults. British Journal of Sports Medicine. PubMed 28698222
5.Trexler ET, Smith-Ryan AE, Norton LE (2014). Metabolic adaptation to weight loss: implications for the athlete. Journal of the International Society of Sports Nutrition. PubMed 24571926

06Before you start

Running this protocol

Questions people ask first

Very active + multiple diets tried. Underfueling is the more likely problem. If that sentence describes the last year or two of your life more accurately than it describes anyone else's, you are in the right protocol.

Archetypes overlap on purpose — most people recognise themselves in two or three. The assessment resolves that by weighing the whole combination of your answers rather than one keyword, and tells you which pattern to work on first.

Check with the free assessment

Very active adults who've cycled through multiple diets often underfuel during high training. RED-S risk is real. Adequate fueling beats deficit for most.

Timelines shown are the typical order in which markers move, not promises. Individual response varies with starting point, adherence, medication, age and sex.

Free · 2 minutes

Not sure this is your profile?

The Metabolic Assessment maps your specific answers to the right protocol — including the cases where two patterns overlap.

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Educational only, not medical advice. This protocol does not diagnose, treat or cure any condition. Consult your physician before major dietary changes or altering prescribed medication. These statements have not been evaluated by the Food and Drug Administration. Individual results vary; no outcome is guaranteed.