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Vicky Kaushal's dedication to his roles is evident in his transformation for 'Chaava,' where he gained 25 kilos to portray Chhatrapati Sambhaji Maharaj. Despite his naturally fast metabolism, which allows him to lose weight even while eating junk food, he had to follow a strict diet and workout regimen to bulk up for the part.

Pennington Biomedical researchers have identified cysteine, a sulfur-containing amino acid, as a key factor in weight loss. The study, published in Nature Metabolism, reveals that calorie-restrictive diets reduce cysteine levels in white fat, potentially converting it to energy-burning brown fat. Animal trials demonstrated significant weight loss and increased fat burning with cysteine depletion.