Here’s How Intermittent Fasting Benefit Yoir Immune System

A recent review in the journal Immunology Letters suggests that the timing of meals can give your immune system an edge.

A plate seen from above with the knife and fork arranged to resemble the hands of a clock with food arranged to illustrate the concept of intermittent fasting. Cape Town, South Africa, January2021.

PARIS, France – ‘Intermittent fasting increases the rate of autophagy [cell recycling] and, therefore, decreases the amount of inflammation in the body’, says Jamal Uddin, PhD, a co – author of the study. ‘This, in turn, lets the immune system more efficiently spend its resources fighting off illness’.

In a nutshell, the extended calorie drought prompts your body to look for a refuel by converting damage cells into nutrients, which reduces inflammation caused by those cells, says Herman Pontzer, PhD, the author of ‘Burn’ a new look at metabolism.

The Math Behind Fasting

What time frame triggers this calorie – restricted signal to the body? An earlier analysis of intermittent fasting in the New England Journal Of Medicine found that fitting meals into six- or eight- hour windows (say, from noon to 6 P.M. or 11 A.M. to 7 P.M.) is beneficial in reducing inflammation compared with a typical day of eating, but a 12 – hour window is less so, says Mark Mattson, PhD, a co – author of the study.

But you do reap some benefits without being at the more restrictive end, says Marie Spano, RDN, a sports dietitian and the lead author of Nutrition for Sport, Exercise, and Health. ‘Short – term studies using time – restricted eating, where food is restricted to 13 – hour windows or less [like 7 A.M. to 8 P.M], show it can help decrease inflammation’.

How To Try Intermittent Fasting

If you’re looking to shrink your eating window, Mattson suggests you do so gradually to acclimate with fewer hunger pangs. If a six- or eight- hour eating period is your aim, Spano recommends ‘making your meal nutrient – dense and eating a meal at the start of your window, in the middle, and at the end’. Protein is best spaced out every three to five hours for maximum muscle maintenance and gain, for instance.

To further fend off inflammation, keep up the exercise. ‘When your body adjusts to spending more of its energy on physical activity and exercise, one of the ways it does that is by reducing energy spent on inflammation’, says Pontzer.

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