India, June 30 -- In a world dominated by social media fitness trends, the pursuit of visible six-pack abs and an ultra-lean physique is often equated with peak health. However, health experts are increasingly warning that this aesthetic ideal can come at a steep biological cost. Also read | Fitness coach says 'skinny is actually quite useless'; shares 3 things to focus on for sustainable fat loss

Nutritionist Deepsikha Jain took to Instagram on June 29 to issue a reality check for women striving for extreme leanness. She said, "Girls, if I were your nutritionist, then here's what I would remind you, skinny girls with visible abs usually skip their period."

According to Deepsikha, the loss of a menstrual cycle in highly active, lean wom...