Glossary of words

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Acne

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

Adaptive thermogenesis

Metabolic process that helps regulate internal temperature.
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A

Adiposity

Excessive storage of body fat.
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A

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.
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A

Antioxidants

Substance that protects cells from damage caused by free radicals and oxidative stress.
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A

Apnea

Apnea is a temporary interruption of breathing during sleep, which can affect the body's proper oxygenation and sleep quality.
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A

Ashwagandha

Ashwagandha (Withania somnifera) is an adaptogenic plant used in Ayurvedic medicine to reduce stress, balance hormones, and support energy.
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A

Autophagy

Cellular “cleansing” process that recycles damaged proteins and supports metabolic health during periods of fasting.
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A

BMR (Basal Metabolic Rate)

The minimum amount of energy needed by the body for vital functions.
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B

Baseline Metabolic Rate (RMB)

The Basic Metabolic Rate is the minimum energy that the body consumes at complete rest to support vital functions.
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B

Beta-Hydroxy Butyrate

A ketone body produced during fat metabolism.
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B

Beta-hydroxybutyrate

Ketone body used as energy in ketosis.
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B

Biohacking

Biohacking means consciously optimizing your body and mind using technology, nutrition, sleep, and routines for better health.
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B

Biological value

It measures how completely a protein is used in the body.
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B

Body recomposition

Process by which you lose fat and gain muscle mass at the same time.
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B

C-reactive protein

Inflammatory marker important for metabolic health.
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C

CRP (C-reactive protein)

Inflammatory marker used in blood tests; the level decreases during fasting.
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C

Caloric restriction

Voluntary restriction of caloric intake for health benefits.
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C

Calorie deficit

Consumption of calories below necessary.
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C

Carnivorous Diet

The carnivore diet is an extremely restrictive diet that involves the consumption of exclusively animal products: meat, fish, eggs, and sometimes low-lactose dairy.
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C

Chrononutrition

Synchronization of nutrition with the natural rhythm of the body.
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C

Circadian rhythm

24-hour biological rhythm that affects sleep and metabolism.
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C

Clean fasting

Fasting excludes all calories, sweeteners and flavorings; only water, black coffee and plain tea.
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C

Collagen

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

Cortisol

Stress hormone that regulates glucose.
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C

DASH diet

DASH (Dietary Approaches to Stop Hypertension) is a diet originally created to prevent and control high blood pressure.
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D

Diabetes

Diabetes is a chronic disease that affects the way the body processes glucose in the blood, leading to high blood sugar and metabolic imbalances.
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D

Digestion

The process by which the body breaks down food for absorption.
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D

Digestive Enzyme

Protein that helps break down food.
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D

Digestive Enzyme

Substances that help break down food for absorption.
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D

Dry fasting

Type of fasting in which no water is consumed.
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D

Duration of fasting

The time interval without nutrition.
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D

Electrolytes

Essential minerals (Na, K, Mg) that maintain hydration and muscle function during fasting.
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E

Endorphins

Hormones of happiness that are released during exercise or fasting.
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E

Energetic balance

Balance between energy consumed and spent.
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E

FMD (Fasting-Mimicking Diet)

5-day/month low-calorie diet that mimics the benefits of fasting without completely excluding food.
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F

Fasting window

The interval in which no calories are consumed; triggers fat burning and metabolic adaptation specific to intermittent fasting.
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F

Fat Burning Zone

Optimal range in which the body uses fat as the main source of energy.
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F

Feeding window

Permissible daily period for meals; usually 4-8 hours, favors caloric control and healthy circadian rhythm.
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F

Flexible metabolism

The body's ability to switch between carbohydrate and lipid metabolism.
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F

Gluconeogenesis

Creation of glucose from non-carbohydrate sources.
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G

Glucose

Glucose is the main blood sugar and the essential source of energy for the body's cells.
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G

Glycaemia

Blood sugar represents the concentration of glucose (sugar) in a person's blood and is a key indicator of metabolic health.
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G

Glycemic index

It measures the rate at which carbohydrates raise blood sugar.
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G

Glycogen

Reserve form of glucose stored in the liver and muscles; it is depleted in the first hours of fasting.
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G

Grelin

Hormone that stimulates appetite.
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G

Growth Hormone (GH)

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

Half fast

Fasting method in which only part of the day is devoted to abstinence.
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H

Hormones of hunger

Hormones that regulate the feeling of hunger and satiety.
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H

Hydration

Hydration is the process by which the body maintains its water balance, essential for the proper functioning of all biological organs and systems.
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H

Hyperglycaemia

Hyperglycemia means an increased level of glucose in the blood, above the limits considered normal.
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H

Hypertension

Hypertension is a condition characterized by a constant increase in blood pressure in the arteries above normal values, affecting the heart, vessels and internal organs.
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H

Hypoglycaemia

Hypoglycemia is an abnormal decrease in blood glucose levels below the safe limit for the normal functioning of the body.
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H

Inflammation

Inflammation is a natural response of the immune system to an aggression, but when it becomes chronic, it can lead to metabolic, autoimmune diseases and accelerated aging.
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I

Insulin

Insulin is an essential hormone secreted by the pancreas, which regulates blood glucose levels and has a key role in energy metabolism.
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I

Insulin resistance

Condition in which cells respond poorly to insulin, leading to high blood sugar and fat accumulation.
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R

Insulin resistance

Condition in which cells respond poorly to insulin.
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I

Intermittent Fasting

Intermittent fasting is an eating pattern that alternates fasting periods (without calories) with periods when food consumption is allowed.
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I

Intermittent fasting

Eating method that involves fasting and eating cycles.
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I

Intuitive nutrition

Method of nutrition based on listening to bodily sensations.
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I

Jugular fasting

Fasting focused on reducing venous blood flow through temporary restrictions.
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J

Keto Diet

The ketogenic diet is a diet characterized by a very low carbohydrate intake, a moderate intake of protein and a high one of healthy fats.
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K

Ketoadaptors

Adaptation of the body to use fats as the main source of energy.
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K

Ketone bodies

Molecules produced during fat metabolism for energy.
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K

Ketosis

Metabolic state in which the body uses ketone bodies as the main fuel, favored by fasting and low-carb diets.
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K

Lean muscle mass

Body weight excluding fat mass.
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L

Leptin

Hormone involved in the regulation of satiety and body weight.
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L

Lipid Metabolism

The process of using fats for energy purposes.
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L

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, and low-starch vegetables.
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L

Mediterranean Diet

The Mediterranean diet is a dietary pattern inspired by the traditional customs of the countries around the Mediterranean Sea (Greece, Italy, Spain).
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M

Metabolic oxidation

Process of energy generation by oxidation of nutrients.
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M

Methylene blue

A compound with antioxidant, antimicrobial and potentially neuroprotective properties, used both medically and as an experimental supplement.
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M

Minerals

Minerals are essential micronutrients for the body's health, involved in vital functions such as electrolyte balance, immunity, bone health, and enzyme activity.
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M

Mitochondria

Mitochondria are the organs of the cell present in almost all cells in the human body, known as the “energy plants” of the cell.
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M

Mounjaro

Mounjaro is an injectable medicine based on tirzepatide, approved for the treatment of type 2 diabetes, but also for weight loss in some versions (ex: Zepbound).
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M

Neuroplasticity

The ability of the brain to adapt and reorganize.
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N

Nootrope

Natural or synthetic substance designed to improve cognitive functions such as memory, concentration or creativity, without significant harmful effects.
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N

OMAD

Acronym for “One Meal A Day”; implies a single main meal in an interval of about 1 hour.
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O

Optimal hydration

Optimal level of hydration to support body functions.
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O

Orexine

Neuropeptide involved in the regulation of appetite and wakefulness.
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O

Ozempic

Ozempic is an injectable medicine based on semaglutide, mainly used to treat type 2 diabetes and, more recently, to control body weight in certain cases.
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O

Paleo diet

Also known as the “diet of the ancestors”, it is inspired by the diet of people in the Paleolithic. This includes meat, fish, eggs, vegetables, fruits and nuts, but excludes dairy, cereals and processed foods.
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P

Phytonutrients

Plant compounds with antioxidant and anti-inflammatory role.
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P

Quality sleep

Deep and quality sleep for the full regeneration of the body.
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Q

Refeed

Strategic meal rich in carbohydrates and proteins after a period of fasting or restricted diet.
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R

Refeed

Refeed is a strategic recovery meal after fasting that helps the body replenish its energy reserves and avoid metabolic shocks.
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R

Somatotropin

Growth hormone involved in regeneration and development.
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S

Thermogenic effect

Additional burning of calories after eating.
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T

Time-Restricted Feeding (TRF)

Eating pattern limited to the same daily interval, synchronized with the biological clock.
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T

Triglycerides

Type of fat stored or circulating in the blood.
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T

Urea

Decomposition product of protein metabolism.
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U

Use of glycogen

Process by which the body accesses glycogen stores.
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U

Vegan Diet

Vegan diet completely excludes products of animal origin (meat, fish, dairy, eggs, honey), relying on vegetables, fruits, cereals, legumes, nuts and seeds
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V

Vegetarian Diet

Food model without meat and fish; some variants include eggs and/or dairy (ovo-lacto, ovo, lacto).
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V

Vitamin D

Essential vitamin for bone and immune health.
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V

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, usually 24—72 hours, with controlled output (refeed) at the end.
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P

Wegovy

Wegovy is a semaglutide-based drug, approved specifically for weight loss, especially in people with obesity or overweight with comorbidities.
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W

Zinc

Mineral vital for immunity, healing and metabolism.
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Z