India, April 7 -- Sara Ali Khan's transformation is nothing short of inspiring, as the actor has undergone a dramatic weight loss to achieve a fit and toned body. In a previous interview with Pinkvilla, the 29-year-old revealed that she follows a strict "no sugar, no milk, and no carbs" diet.

But is this a healthy approach, and can it actually help with weight loss? Dietitian and weight loss expert Sumit Sharma, in his March 28 Instagram post, sheds light on whether this diet works and shares the best way to implement it effectively. (Also read: Weight loss coach who shed 50 kg reveals 'best morning routine to lose kilos': Wake up at same time every day )

Sumit captioned his post, "Weight loss is easy if you know what to eat and when to...