India, May 16 -- Protein shakes are often considered a quick and healthy way to meet daily nutritional goals. From gym-goers to busy professionals, many rely on them for both convenience and energy. However, many people don't even realise that some of these protein drinks may contain sugar levels comparable to those of certain sugary beverages like soda, warns a doctor.

Normally, protein shakes are marketed for both fitness and wellness, but not all of them are nutritionally balanced. "Many ready-to-drink options and flavoured protein powders also contain added sugars, artificial sweeteners, or syrups to enhance taste", Dr Vijay Kumar Sharma, Internal Medicine Doctor at Regency Hospital, tells Health Shots.

In some cases, a single servi...