GO-3.0/tools/qortino-knowledge/docs/health/keto-fasting.md

# Healthy Keto and Intermittent Fasting (Dr. Berg-style themes)

*Summarizing themes popularized by Dr. Eric Berg DC (drberg.com). Educational
only, not medical advice — especially important for anyone with diabetes, on
blood-sugar or blood-pressure medication, pregnant or breastfeeding, or with
a history of disordered eating: fasting and ketogenic diets require
professional guidance in those cases.*

## The insulin model

The central idea: chronically elevated insulin — driven by frequent eating
and refined carbohydrates — locks the body in fat-storage mode and underlies
insulin resistance, stubborn weight, energy crashes, and cravings. Lowering
insulin through carbohydrate reduction and longer gaps between meals lets the
body switch to burning fat and ketones.

## "Healthy keto"

Not just low-carb, but nutrient-dense low-carb: large amounts of
non-starchy vegetables (with emphasis on greens and cruciferous vegetables),
adequate protein from quality sources, healthy fats, and avoidance of
ultra-processed "keto junk". Typical shape: roughly 20-50 g net carbs per
day, moderate protein, fat to satiety.

## Intermittent fasting

Usually combined with keto. Common progression: start by cutting snacks (3
meals, nothing between), move to 16:8 (16-hour fast, 8-hour eating window),
then 18:6 or one-meal-a-day (OMAD) if it suits the person. Eat until
satisfied within the window — fasting is about meal frequency, not chronic
under-eating.

## Keto flu and electrolytes

When switching to keto, insulin drops and the kidneys excrete sodium and
water, which can cause fatigue, headaches, cramps, and "keto flu". The
standard remedy in this community: more sodium, potassium, and magnesium,
B vitamins (especially B1), and adequate water. Muscle twitching early in
keto usually points to electrolytes.

## Blood sugar and energy

Afternoon energy crashes, waking up hungry, and constant cravings are treated
as signs of blood-sugar swings and insulin resistance rather than character
flaws. The fix offered: fewer eating occasions, protein and fat at meals,
removal of refined sugar and starch, and patience through a short adaptation
period (sugar withdrawal is real and passes within days to weeks).

## Cautions

Ketogenic diets and fasting are genuinely powerful metabolic interventions —
which is exactly why medicated diabetics can be driven hypoglycemic and why
medical supervision matters. Long fasts (beyond about 24 hours) are an
advanced practice, not a starting point.

## What to eat, concretely

The plate pattern taught in this approach: 2-4 large handfuls of non-starchy
vegetables (leafy greens, cruciferous — broccoli, cauliflower, cabbage,
Brussels sprouts — zucchini, peppers, asparagus, mushrooms), a palm-to-two
of protein (eggs, fatty fish, beef, lamb, poultry with skin, organ meats,
full-fat dairy if tolerated), and fat to satiety (butter/ghee, olive oil,
avocado, nuts and seeds in moderation, fatty cuts). Condiment staples:
apple cider vinegar (widely used before meals for blood-sugar response),
lemon, herbs, mustard, fermented vegetables like sauerkraut for gut
support. Avoid: sugar in all forms, flour and refined starch, sweet drinks
including juice, industrial seed oils, and "keto" ultra-processed products
that recreate junk food with sweeteners.

## Common deficiency signals discussed in this community

(Educational patterns to research further, not diagnoses.) Muscle cramps
and twitching → magnesium/potassium; fatigue and carb cravings early on →
salt and B1; nighttime leg cramps → electrolytes broadly; hair/skin/nail
issues → protein adequacy and trace minerals; poor fat digestion (nausea
after fatty meals, floating stools) → discussed as gallbladder/bile
support territory — smaller fat loads, ox-bile supplements in this
community's practice, and medical evaluation if persistent. Potassium is
the hardest target: the reference intake (~3,500-4,700 mg/day) is nearly
impossible without deliberate vegetable volume — hence the huge salads.

## Adaptation timeline

Typical pattern taught: days 1-3 water and sodium flush (weight drops fast,
much is water; add salt), days 3-10 possible keto flu (electrolytes fix
most of it), weeks 2-6 fat adaptation builds — steadier energy, longer
comfortable fasts, reduced cravings. Exercise performance often dips before
recovering. Breaking longer fasts: start small and gentle (broth, eggs,
cooked vegetables), not a feast — the "overeating rebound" after fasting is
predictable and manageable with a planned first meal and protein first.

## Fasting ladder taught in this approach

Cut snacking → 3 meals no snacks → 16:8 → 18:6 → OMAD (one meal a day),
holding each stage until comfortable, hunger being expected to come in
short waves that pass. Coffee, tea, and water don't break the fast in this
framework; anything with calories does; bone broth is treated as a
"dirty-fast" tool for easing into longer fasts rather than strict fasting.
Longer than 24-48 h: this community itself advises medical supervision,
refeeding care, and electrolytes throughout. Who should not fast at all
without professional guidance: type 1 diabetics, anyone on glucose-lowering
or blood-pressure medication (doses may need adjustment as markers change —
work with the prescriber), pregnant and breastfeeding women, children,
underweight individuals, and anyone with an eating-disorder history.

## Sleep, stress, and cortisol

This approach treats stubborn weight and blood-sugar issues as partly
stress problems: poor sleep and chronic stress raise cortisol, which raises
blood sugar and appetite independently of food. The prescription mirrors
the foundations chapter — sleep priority, daily walking, sunlight, and
stress practices — because insulin and cortisol are treated as the two
dials that matter.