Think skinny is healthy? Doctor shares 5 factors why being thin doesn’t guarantee strong immunity

Being skinny sometimes feels like the ultimate goal for many. Social media, fitness trends, and mindless idolising of celebrities sharing their dramatic weight loss stories amplify this growing obsession. We aspire for tiny waists and a chiselled jawline, wanting to look thinner, thinking that a slimmer frame would look better. But in the process, we tend to miss one important point: Skinny does not automatically indicate that you are healthy. A person can feel happy by fitting into smaller clothes, but that doesn’t eliminate exhaustion, undernourishment, or mental fatigue.

Skinny vs good health: Doctor shares advice

London-based doctor Sumit Sharma, who specialises in improving metabolic health and optimising longevity, has broken the myth that skinny equals healthy. In his latest X-post, he listed 5 reasons that show why outward appearance alone is a poor marker of overall well-being and immunity.

According to the doctor, being skinny can mean that an individual is suffering from


Visceral fat
Inflammation
Insulin resistance
Low muscle mass
Poor metabolic flexibility

Metabolic health matters more than just weight loss

Now, let’s decode each of them individually. As per Healthline, visceral fat accumulates inside the abdomen, surrounding vital organs. This type of internal fat can affect blood vessels, raising the chances of several health problems like diabetes, prediabetes and heart disease.

Inflammation, caused by your immune system, happens to protect the body from infection, injury, or disease. You immunity attacks healthy cells, especially when an individual suffers from conditions like arthritis and inflammatory bowel disease.

Insulin resistance occurs when the body stops responding to insulin, a hormone that helps regulate blood sugar levels. As a result, glucose remains in the bloodstream instead of being used for energy, contributing to various health concerns over time.

Muscle loss, also known as atrophy, happens when muscles shrink or weaken due to lack of regular use. Some common causes include limited movement due to injury, illness, or medical conditions that reduce physical activity.

Poor metabolic flexibility refers to following a confusing diet where one day you are having too many calories, while on the other day your body doesn’t receive enough calories, leading to
a metabolic confusion.

Instead of focusing on being skinny, simple dietary changes can improve body composition. One way is to reduce carbohydrate intake and cut back on sugars, choosing whole grains, fruits and vegetables as your primary carb sources, and reduce sugary, high-calorie drinks like soda, alcohol and packaged juices. Additionally, you must limit ultra-processed foods like pastries, sweetened cereals and candy bars and instead prioritise eating enough protein throughout the day to support muscle health