Is fast­ing an ef­fec­tive way to lose weight?

Focus-Science and Technology - - Q&A -

Fast­ing forces the body to start burn­ing fat. So on a ba­sic level, re­strict­ing your food in­take can be an ef­fec­tive weight loss tech­nique – but sci­en­tists are di­vided on which ap­proach gives di­eters the most health ben­e­fits. In­ter­mit­tent fast­ing, such as the ‘5:2 diet’, rec­om­mends two con­sec­u­tive, low-car­bo­hy­drate, 500-800 calo­rie days to safely lose weight.

How­ever, you need longer pe­ri­ods (three to four days with­out car­bo­hy­drates) to put your body into ke­to­sis, the state where your ap­petite will start to de­crease. Ex­perts don’t rec­om­mend try­ing this with­out med­i­cal back­ing, cau­tion­ing that the long-term con­se­quences of high-in­ten­sity fast­ing are not fully un­der­stood.

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