Obesity and gout are closely linked through metabolic disorders. Obese individuals often have co-existing conditions like diabetes and hypertension, which affect uric acid metabolism. The accumulation of excess fat promotes more frequent and severe acute gout attacks.

Dr. Nguyen Thi Oanh of the Musculoskeletal Department at Tam Anh General Hospital in Hanoi explained several mechanisms linking obesity to elevated blood uric acid and the development of gout.

Insulin resistance is common in obese individuals as their bodies need to produce more insulin to maintain stable blood sugar levels. Insulin typically lowers uric acid levels by increasing its excretion through the kidneys. However, when the body develops insulin resistance, the ability to excrete uric acid diminishes, leading to an increased risk of gout.

Obese individuals often experience increased uric acid production when consuming high-calorie, purine-rich foods such as red meat and seafood. The breakdown of purines generates more uric acid in the blood. Additionally, excess fat can stimulate xanthine oxidase, a key enzyme in uric acid production, causing the body to produce more uric acid and further increasing gout risk.

Obesity often leads to reduced uric acid excretion due to impaired kidney function, which decreases the kidneys' ability to filter and eliminate uric acid through urine. Excess abdominal fat can also reduce blood flow to the kidneys, impacting their function and further diminishing excretion, resulting in greater uric acid accumulation.

Chronic inflammation, caused by excess adipose tissue releasing pro-inflammatory cytokines like TNF-α and IL-6, can worsen joint inflammation and promote the formation of urate crystals. This increases the risk of gout flare-ups and exacerbates symptoms.

Hypertension in obese individuals often necessitates the use of diuretics. However, these medications can elevate blood uric acid levels, contributing to gout development.

Dr. Oanh advises an overweight patient with gout. Photo: Tam Anh General Hospital.

Dr. Oanh noted that gout treatment becomes more challenging for obese patients due to the higher frequency and severity of gout attacks. Managing gout in obese individuals requires a combined approach from musculoskeletal, endocrine, and obesity treatment specialists. Doctors assess the patient's obesity status and metabolic disorders to develop personalized treatment plans that control both gout and weight.

Beyond medical treatment to control uric acid, patients must adopt lifestyle changes. This includes managing their diet by limiting purine-rich foods, beer, and alcohol, while increasing intake of green vegetables, low-sugar fruits, and whole grains, and ensuring adequate hydration. Regular exercise, tailored to individual fitness levels, and healthy weight loss help reduce pressure on joints and limit acute gout inflammatory episodes.

Thanh Long