Discussions on fasting, beta hydroxybutyrate & the fasting mimicking diet | Dr. Darya & Kevin Rose
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In this video, Dr. Darya & Kevin Rose talk about beta-hydroxybutyrate, an endogenous ketone body that increases in concentration during times of fasting or carbohydrate restriction. Beta-hydroxybutyrate also increases during a fasting-mimicking diet, which is a time of temporary period of calorie and protein restriction that generates many of the same biochemical effects of prolonged fasting.
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A chemical produced in the liver via the breakdown of fatty acids. Beta-hydroxybutyrate is a type of ketone body. It can be used to produce energy inside the mitochondria and acts as a signaling molecule that alters gene expression by inhibiting a class of enzymes known as histone deacetylases.
A diet that mimics the effects of fasting on markers associated with the stress resistance induced by prolonged fasting, including low levels of glucose and IGF-1, and high levels of ketone bodies and IGFBP-1. More importantly, evidence suggests these changes in the cellular milieu are associated with a sensitization of cancer cells to chemotherapeutic drugs while simultaneously also conferring greater stress resistance to healthy cells.[1] Evidence also continues to emerge that properties of the fasting-mimicking diet, particularly its ability to cause immune cell turnover, may also make it useful in the amelioration of auto-immune diseases like multiple sclerosis.[2]
Fasting-Mimicking Diet Breakdown
- Day 1 - consists of 1,090 total calories (10% protein, 55% fat and 34% carbohydrate)
- Days 2 through 5 - consists of 725 total calories (9% protein, 44% fat and 47% carbohydrate)
[1] Cheng, Chia-Wei, et al. "Prolonged fasting reduces IGF-1/PKA to promote hematopoietic-stem-cell-based regeneration and reverse immunosuppression." Cell Stem Cell 14.6 (2014): 810-823. [2] Choi, In Young, et al. "A diet mimicking fasting promotes regeneration and reduces autoimmunity and multiple sclerosis symptoms." Cell Reports 15.10 (2016): 2136-2146.
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Fasting News
- A fasting-mimicking diet improved effectiveness and reduced toxicity of neoadjuvant chemotherapy in breast cancer patients.
- Exercise mitigates muscle mass losses during severe energy deficit by inhibiting the induction of autophagy.
- Time-restricted eating, a ketogenic diet, and exercise improved cognitive function and markers of metabolism in a woman with ApoE4 and Alzheimer's .
- A clinical trial found a fasting-mimicking diet decreased biomarkers of inflammation in humans. In mice, it reversed pathologies linked to Crohn's.
- Intermittent fasting could improve obese women's health
