Dr. Jonathan Kim

Dr. Jonathan Kim Board-certified internal medicine physician focused on metabolic health, weight management, and skin health from within.

I use science-backed care to support energy, body balance, and lasting skin vitality — without harsh treatments.

Do you truly understand obesity? Unhealthy eating habits significantly increase the likelihood of developing obesity!The...
01/15/2026

Do you truly understand obesity?
Unhealthy eating habits significantly increase the likelihood of developing obesity!

The main cause of obesity is energy imbalance, meaning that calorie intake exceeds the calories the body expends. Poor dietary habits, such as excessive consumption of high-sugar, high-fat, and ultra-processed foods, are common contributing factors. In addition, genetic, metabolic, and hormonal factors also play a role. Preventing obesity requires lifestyle changes: controlling total calorie intake, increasing physical activity, choosing natural, minimally processed foods, and maintaining a regular sleep schedule. Consistently combining a healthy diet with exercise can effectively reduce the risk of obesity.

Obesity stems from a complex mix of factors, primarily an energy imbalance (consuming more calories than burned) driven ...
01/15/2026

Obesity stems from a complex mix of factors, primarily an energy imbalance (consuming more calories than burned) driven by poor diet (processed foods, sugary drinks), lack of physical activity (sedentary lifestyles, increased screen time), insufficient sleep, and chronic stress, alongside genetic predispositions, certain medications, underlying health conditions, and socioeconomic/environmental influences. Prevention focuses on adopting healthier habits: balanced eating (more fruits/veg, less sugar/fat), regular exercise (150 mins/week), good sleep hygiene, stress management, and reducing screen time.

How to identify senile warts?Senile warts, or seborrheic keratoses, are identified by their "stuck-on" waxy, scaly, or r...
12/18/2025

How to identify senile warts?
Senile warts, or seborrheic keratoses, are identified by their "stuck-on" waxy, scaly, or rough texture, varying in color from tan to brown or black, appearing raised and round/oval, and often clustering on the chest, back, face, or neck, especially with age; they're benign but need a dermatologist's check to rule out skin cancer.

SKINCARE MISTAKES TO AVOID
12/18/2025

SKINCARE MISTAKES TO AVOID

How to provide daily skincare in cold weather to prevent dry skin?To care for skin in winter, use gentle, fragrance-free...
12/18/2025

How to provide daily skincare in cold weather to prevent dry skin?
To care for skin in winter, use gentle, fragrance-free cleansers and thick creams with ceramides/hyaluronic acid, apply moisturizer to damp skin, take shorter/lukewarm showers, run a humidifier, and protect exposed skin with sunscreen and layers, staying hydrated from within to prevent dryness and maintain your skin's barrier.

Seborrheic keratosis (SK) symptoms include "stuck-on" looking skin growths that are tan, brown, black, or yellow, often ...
12/18/2025

Seborrheic keratosis (SK) symptoms include "stuck-on" looking skin growths that are tan, brown, black, or yellow, often with a waxy, scaly, or rough texture and distinct edges, appearing on the face, chest, back, or arms. While usually painless, they can become itchy, irritated, or bleed if rubbed by clothing. Key signs to see a doctor include rapid growth, bleeding, changing color/shape, or sudden numerous growths, as these can mimic skin cancer.

What causes the appearance of age spots?Age spots, or solar lentigines, are primarily caused by prolonged ultraviolet (U...
12/18/2025

What causes the appearance of age spots?
Age spots, or solar lentigines, are primarily caused by prolonged ultraviolet (UV) sun exposure and the natural aging process, which leads to melanin (skin pigment) cells overproducing pigment, creating dark spots on sun-exposed areas like hands, face, and shoulders, though genetics, hormonal changes, and certain medications can also play a role. They are essentially your skin's response to accumulated sun damage, resulting in clusters or clumps of excess pigment.
Sun Exposure (UV Rays): The biggest factor; UV light triggers melanocytes (pigment cells) to produce more melanin as a protective mechanism, leading to dark spots.
Aging: Over time, skin cell turnover slows, and pigment cells can become more active, contributing to their appearance.
Genetics: Some people are predisposed to developing age spots due to hereditary factors.
Hormonal Fluctuations: Changes, especially in women, can sometimes trigger pigmentation issues like age spots.
Medications: Certain drugs, including some antibiotics, hormones (estrogens), and anticonvulsants, can increase sun sensitivity and pigmentation.

Taking precautions to stay warm can effectively prevent further damage to the skin.
12/18/2025

Taking precautions to stay warm can effectively prevent further damage to the skin.

La obesidad es una enfermedad crónica multifactorial no transmisible
09/27/2025

La obesidad es una enfermedad crónica multifactorial no transmisible

Impacto de la obesidad y la diabetes en la salud y en la enfermedad cardiovascular
09/27/2025

Impacto de la obesidad y la diabetes en la salud y en la enfermedad cardiovascular

Polycystic O***y Syndrome (PCOS) is an endocrine disorder that affects women, characterized by the presence of multiple ...
09/09/2025

Polycystic O***y Syndrome (PCOS) is an endocrine disorder that affects women, characterized by the presence of multiple small follicles in the ovaries. PCOS can lead to irregular menstrual cycles, ovulation problems, and elevated androgen levels, which in turn cause a range of symptoms such as acne, hirsutism, and hair loss. Women with PCOS may have difficulty conceiving and are at higher risk for other health issues, such as diabetes and heart disease. Treatments are diverse and include lifestyle changes (such as diet and exercise) and medications to control symptoms and manage long-term health risks.

Sometimes the things that bother you are the small details you’re missing. Pick the right path, and your life can return...
09/01/2025

Sometimes the things that bother you are the small details you’re missing. Pick the right path, and your life can return to health.

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Mayo Clinic – Rochester Campus 200 First Street SW
Rochester, MN
55905

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