Circadian rhythm

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Circadian rhythm

The circadian rhythm is the body's internal 24-hour clock that governs sleep, hormones, and metabolism, and can be influenced by when you eat.

The circadian rhythm governs the sleep-wake cycle and metabolic functions over the course of 24 hours.

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Duration of fasting

Fasting duration is the length of time spent without eating, ranging from a few hours in daily intermittent fasting to multiple days in extended fasts.

Water fasting

Water fasting is a form of fasting in which only water (possibly mineral water/electrolytes without calories) is consumed for a limited period…

Half fast

Half fasting is an approach where only part of the day, rather than a full day, is dedicated to abstaining from food, a gentler entry into fasting.

Digestive Enzyme

A digestive enzyme is a type of protein made by the body that speeds up the chemical breakdown of food into smaller, absorbable nutrient molecules.

Flexible metabolism

Metabolic flexibility is the body's ability to switch between burning carbohydrates and fat for fuel depending on availability and energy demand.

Quality sleep

Quality sleep refers to deep, uninterrupted rest that allows the body to fully recover, regulate hormones, and support metabolic processes tied to fasting.

Collagen

Essential protein that provides structure to the skin, bones and joints; can also be supplemented during fasting.

Biological value

Biological value is a measure of how efficiently the body can absorb and use the protein from a given food source for growth and tissue repair.

Low-Carb Diet

The low-carb diet is a diet that limits carbohydrate intake — such as white bread, pasta, and sugar — and emphasizes protein, healthy fats…

Beta-Hydroxy Butyrate

Beta-hydroxybutyrate is the most abundant ketone produced when the body shifts to burning fat for fuel, and is commonly measured to track ketosis.

Energetic balance

Energy balance describes the relationship between the calories you consume through food and the calories your body expends, which determines weight.

C-reactive protein

C-reactive protein is a blood marker produced by the liver in response to inflammation, and tracking it can offer insight into overall metabolic health.

Glycemic index

The glycemic index ranks carbohydrate-containing foods by how quickly they raise blood sugar, helping guide food choices around fasting windows.

Triglycerides

Triglycerides are a type of fat found circulating in the blood and stored in fat tissue, serving as a key energy reserve the body draws on during fasting.

Growth Hormone (GH)

(Growth hormone) Hormone essential for regeneration and maintenance of muscle mass; increases during fasting.

Alkaline Diet

The alkaline diet is a type of diet based on the idea that food can influence the acid-base balance of the body.

Cortisol

Cortisol is a stress hormone that helps regulate blood sugar, metabolism, and inflammation, and its levels naturally fluctuate throughout a fasting period.

Acne

Acne is an inflammatory skin condition caused by blockage of pores with sebum, bacteria, and dead cells.

Calorie deficit

A calorie deficit happens when you consume fewer calories than your body burns, prompting it to use stored fat for energy and lose weight.

Body recomposition

Body recomposition describes the process of simultaneously losing fat and building lean muscle, often pursued through strategies like intermittent fasting.

Optimal hydration

Optimal hydration means maintaining fluid and electrolyte levels that properly support circulation, digestion, and temperature regulation daily.

Grelin

Ghrelin is a hormone produced mainly in the stomach that stimulates appetite, with levels that typically rise before meals and during fasting periods.

OMAD

OMAD, short for One Meal a Day, is an intermittent fasting approach where all daily calories are eaten within roughly a one-hour window.

Hormones of hunger

Hunger hormones, primarily ghrelin and leptin, work together to signal when the body needs food and when it has had enough, shaping eating patterns.

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The information presented on this site is strictly educational and informational in nature. Postintermitent.ro does not provide medical advice and does not substitute for specialist consultation. Before adopting any form of intermittent fasting or making any significant changes in your diet, it is essential that you consult your doctor and carry out the necessary medical investigations. The content of this site should not be construed as personalized medical advice. Responsibility for your own health and safety rests entirely with you. For clarifications or health-related decisions, we recommend that you talk to a medical professional.

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