Introduction:

Obesity is a problem in almost all societies, leading to the search for different methods to combat it. One of them is intermittent fasting (IF), characterized by periods without food intake (16 to 24 hours), limited or no caloric intake, combined with normal eating windows.

Objective:

The study aims to determine the effectiveness of intermittent fasting on biochemical and anthropometric markers in obese adults.

Methods:

A systematic review was proposed that aimed to study blinded or open clinical trials of IF interventions, compared to the control group. The response variables were: systolic and diastolic blood pressure, total cholesterol, LDL, HDL, triglycerides, blood glucose, fat mass, weight, waist circumference, BMI, and heart rate. The search and identification of studies was masked. Risks of bias for the Cochrane Collaboration were assessed. They were subjected to meta-analysis (random effect), with R 4.0.0.

Results:

Six studies were included, of 10 to 48 weeks of intervention with alternate-day fasting and time-restricted feeding, reporting some statistically significant changes for different variables (specify).

Conclusion:

Intermittent fasting could intervene in the reduction of cardiovascular risk by improving BMI and biochemical parameters.

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