Dietary restriction

Intervention20 papers25 findings

Human trials show dietary restriction regimens reduce body weight and fat mass, but one trial reports induced respiratory sarcopenia. In mice, caloric restriction lowers blood glucose but increases cholesterol and atherosclerosis in ApoE-deficient models.

  • Human trial3
  • Humans1
  • Animals6

Outcomes

20

Body weight

downin humans3

3 studies
  1. Time-restricted feeding decreases body weight in humans (-3·36 kg, p = 0·008).

    Human trialoverweight or obesity≤10-hour eating window7 weeksfemalesn = 131

    Interaction between time-restricted eating and high-intensity interval training on cardiometabolic outcomes in women with overweight or obesity: a 2 × 2 factorial randomised controlled trial · The British journal of nutrition · 25 Sep 2026

  2. Time-restricted feeding decreases body weight in humans (-3.50 kg ± 2.9).

    Human trialin adults with obesity and T2DM6 weeksn = 39

    The effect of time-restricted eating accompanied by weight loss on thyroid function in adults with type 2 diabetes · Journal of the Endocrine Society · 23 Sep 2026

  3. Intermittent fasting decreases body weight in humans.

    Human trialin prostate cancer patients on active surveillance6 monthsmalesn = 10

    Intermittent fasting versus continuous calorie energy reduction in prostate cancer patients on active surveillance · Translational behavioral medicine · 1 Jan 2026

  4. Caloric restriction decreases body weight in humans (-5.79% [95% CI: -3.48, -8.09]).

    Human trialin prostate cancer patients on active surveillance6 monthsmalesn = 10

    Intermittent fasting versus continuous calorie energy reduction in prostate cancer patients on active surveillance · Translational behavioral medicine · 1 Jan 2026

Respiratory sarcopenia

upin humans1

1 study
  1. Intermittent fasting induces respiratory sarcopenia in humans.

    Human trialadversely affecting NMJ and nervous systemmales

    Ramadan fasting induces respiratory sarcopenia in older men · European journal of applied physiology · 28 Sep 2026

Respiratory sarcopenia →

Maximal expiratory pressure

downin humans1

1 study
  1. Intermittent fasting decreases maximal expiratory pressure in humans.

    Human trialat day 28 of Ramadan28 daysmales

    Ramadan fasting induces respiratory sarcopenia in older men · European journal of applied physiology · 28 Sep 2026

Maximal expiratory pressure →

NOS3

upin mice1

1 study
  1. Intermittent fasting increases NOS3 in mice.

    “ADF enhanced hepatocyte eNOS expression”

    Animalsliver

    Alternate-day fasting resolves liver fibrosis via hepatocyte eNOS signaling · Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 27 Sep 2026

NOS3 →

Anxiety-like behavior

downin rodents1

1 study
  1. Caloric restriction decreases anxiety-like behavior in rodents.

    Reviewmild CR (<40%)

    Caloric restriction and neuropsychiatric phenotypes: A critical review of preclinical data · Neuroscience and biobehavioral reviews · 26 Sep 2026

Nutrient sensing

upin reviews1

1 study
  1. Intermittent fasting activates nutrient sensing.

    Review

    Neuroenergetic flexibility in the aging brain: Cellular mechanisms and diet-induced metabolic switching · Ageing research reviews · 26 Sep 2026

Nutrient sensing →

Metabolic dysfunction-associated steatotic liver disease

downin humans1

1 study
  1. Protein restriction decreases metabolic dysfunction-associated steatotic liver disease in humans.

    “protein restriction (which inhibits mTORC1) similarly reshaped the BA profile in mice and correlated with improved metabolic outcomes in MASLD patients.”

    Humansin MASLD patients

    mTORC1-TFEB/TFE3 signaling is associated with bile acid diversification during hepatic metabolic adaptation · Science advances · 25 Sep 2026

Metabolic dysfunction-associated steatotic liver disease →

HDL cholesterol

downin humans1

1 study
  1. Time-restricted feeding decreases HDL cholesterol in humans.

    Human trialoverweight or obesity≤10-hour eating window7 weeksfemalesn = 131

    Interaction between time-restricted eating and high-intensity interval training on cardiometabolic outcomes in women with overweight or obesity: a 2 × 2 factorial randomised controlled trial · The British journal of nutrition · 25 Sep 2026

HDL cholesterol →

Visceral fat area

downin humans1

1 study
  1. Time-restricted feeding decreases visceral fat area in humans (-12·82 cm 2 , p = 0·020).

    Human trialoverweight or obesity≤10-hour eating window7 weeksfemalesn = 131

    Interaction between time-restricted eating and high-intensity interval training on cardiometabolic outcomes in women with overweight or obesity: a 2 × 2 factorial randomised controlled trial · The British journal of nutrition · 25 Sep 2026

Fat mass

downin humans1

1 study
  1. Time-restricted feeding decreases fat mass in humans (-1·53 kg, p = 0·025).

    Human trialoverweight or obesity≤10-hour eating window7 weeksfemalesn = 131

    Interaction between time-restricted eating and high-intensity interval training on cardiometabolic outcomes in women with overweight or obesity: a 2 × 2 factorial randomised controlled trial · The British journal of nutrition · 25 Sep 2026

All 20

Thyroid function

no changein humans1

1 study
  1. Time-restricted feeding has no effect on thyroid function in humans.

    Human trialin adults with obesity and T2DM6 weeksn = 39

    The effect of time-restricted eating accompanied by weight loss on thyroid function in adults with type 2 diabetes · Journal of the Endocrine Society · 23 Sep 2026

Free cholesterol

upin mice1

1 study
  1. Caloric restriction increases free cholesterol in mice.

    Animalsin ApoE-deficient mice fed HCHF dietliversix months

    Mild caloric restriction accelerates atherosclerosis in mice · JCI insight · 22 Sep 2026

Free cholesterol →

Cholesterol

upin mice1

1 study
  1. Caloric restriction increases cholesterol in mice.

    Animalsin ApoE-deficient mice fed Chow or HCHF dietsix months

    Mild caloric restriction accelerates atherosclerosis in mice · JCI insight · 22 Sep 2026

Cholesterol →

Blood glucose

downin mice1

1 study
  1. Caloric restriction decreases blood glucose in mice.

    Animalsin ApoE-deficient mice fed Chow or HCHF dietsix months

    Mild caloric restriction accelerates atherosclerosis in mice · JCI insight · 22 Sep 2026

Blood glucose →

Atherosclerosis

upin mice1

1 study
  1. Caloric restriction increases atherosclerosis in mice.

    Animalsin ApoE-deficient mice fed Chow or HCHF dietsix months

    Mild caloric restriction accelerates atherosclerosis in mice · JCI insight · 22 Sep 2026

Atherosclerosis →

Lipids with higher degrees of unsaturation

upin mice1

1 study
  1. Caloric restriction increases lipids with higher degrees of unsaturation in mice.

    Animalsbrain

    Caloric restriction dynamically alters RNA splicing and lipid composition in mouse brains · bioRxiv · 22 Sep 2026 · Preprint

Lipids with higher degrees of unsaturation →

Healthspan

upin reviews1

1 study
  1. Intermittent fasting improves healthspan.

    Review

    Intermittent and periodic fasting: molecular mechanisms, health benefits and research challenges · Frontiers in nutrition · 15 Sep 2026

mTOR signalling

downin reviews1

1 study
  1. Intermittent fasting inhibits mTOR signalling.

    Review

    Intermittent and periodic fasting: molecular mechanisms, health benefits and research challenges · Frontiers in nutrition · 15 Sep 2026

mTOR signalling →

AMPK signalling

upin reviews1

1 study
  1. Intermittent fasting activates AMPK signalling.

    Review

    Intermittent and periodic fasting: molecular mechanisms, health benefits and research challenges · Frontiers in nutrition · 15 Sep 2026

AMPK signalling →

Intramuscular fat

downin humans1

1 study
  1. Dietary restriction decreases intramuscular fat in humans.

    Review

    Intramuscular Fat as a Biomarker of Muscle Health: Strengths, Limitations and Open Challenges · Journal of cachexia, sarcopenia and muscle · 1 Jan 2026

Intramuscular fat →

Associations

2

Bile acid composition

mixedin mice1

1 study
  1. Protein restriction is associated with bile acid composition in mice.

    “protein restriction (which inhibits mTORC1) similarly reshaped the BA profile in mice”

    Animalsin mice

    mTORC1-TFEB/TFE3 signaling is associated with bile acid diversification during hepatic metabolic adaptation · Science advances · 25 Sep 2026

Bile acid composition →

RNA splicing

mixedin mice1

1 study
  1. Caloric restriction is associated with RNA splicing in mice.

    Animalsbrain

    Caloric restriction dynamically alters RNA splicing and lipid composition in mouse brains · bioRxiv · 22 Sep 2026 · Preprint

RNA splicing →

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bioRxivAnimalsPreprint

Dietary restriction activates autophagy through selective oxidation of ATG5

Reversible oxidation of a single cysteine residue enables core autophagosome formation and prevents severe tissue pathology during nutrient limitation…Reversible oxidation of a single cysteine residue enables core autophagosome formation and prevents severe tissue pathology during nutrient limitation in mice.

European Journal of Applied PhysiologyHumans

Ramadan fasting induces respiratory sarcopenia in older men

In a study of 53 older men and 48 older women, fasting reduced expiratory muscle strength and worsened neuromuscular markers only in male…In a study of 53 older men and 48 older women, fasting reduced expiratory muscle strength and worsened neuromuscular markers only in male participants.