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Weight-loss injection users advised to watch protein intake

A person uses an injection pen to administer medication into the abdomen. (Adobe Stock Photo)
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A person uses an injection pen to administer medication into the abdomen. (Adobe Stock Photo)
October 30, 2026 07:09 AM GMT+03:00

People who lose weight rapidly with weight-loss injections should consume 1 to 1.5 grams of protein per kilogram of body weight daily to preserve muscle mass and reduce skin changes, according to Prof. Dr. Ozlem Su Kucuk, head of the Dermatology Department at the Bezmialem Vakif University Faculty of Medicine.

Kucuk spoke to Anadolu Agency in Antalya, a Mediterranean coastal city in southern Türkiye, where she attended the 34th National Dermatology Congress organized by the Turkish Dermatology Association.

An injectable medication pen is pictured alongside a measuring tape, illustrating weight management and weight-loss treatments. (Adobe Stock Photo)
An injectable medication pen is pictured alongside a measuring tape, illustrating weight management and weight-loss treatments. (Adobe Stock Photo)

Injection treatments need medical supervision

Injectable weight-loss medications, many of them GLP-1 receptor agonists, have gained popularity worldwide in recent years. Kucuk said these treatments have become widespread and must be used under a physician’s supervision. She noted that rapid weight loss can reduce muscle mass as well as fat tissue.

A woman points to her forehead, illustrating facial skin concerns and cosmetic treatments. (Adobe Stock Photo)
A woman points to her forehead, illustrating facial skin concerns and cosmetic treatments. (Adobe Stock Photo)

Facial changes after rapid weight loss

According to Kucuk, losing facial fat can lead to sunken cheeks, hollowing under the eyes, dark circles, wrinkles, and sagging in the face and neck. This appearance is commonly referred to as “Ozempic face,” after Ozempic, the brand name for the drug semaglutide.

Kucuk pointed to healthy eating and exercise as the main ways to prevent it. “During the rapid weight loss process, 1 to 1.5 grams of protein per kilogram needs to be consumed daily,” she said.

Kucuk added that resistance exercises and adequate water intake also help preserve muscle mass, and that dietary supplements should be taken only on a specialist’s recommendation.

A woman receives a microneedling treatment on her forehead during a cosmetic skincare procedure. (Adobe Stock Photo)
A woman receives a microneedling treatment on her forehead during a cosmetic skincare procedure. (Adobe Stock Photo)

Aesthetic procedures should be performed by specialists

If pronounced sagging and wrinkles appear on the face after rapid weight loss, Kucuk said, a dermatologist can be consulted. When necessary, treatments such as platelet-rich plasma (PRP), a procedure that uses a concentrate of the patient’s own blood platelets, and dermal fillers may be considered.

She stressed that specialist physicians should plan aesthetic procedures based on each person’s needs, warning that turning to unqualified practitioners can cause serious health problems.

Kucuk also said uncontrolled use of herbal products and vitamin supplements can lead to skin reactions, drug interactions and harmful effects on the liver and kidneys.

October 30, 2026 07:09 AM GMT+03:00
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