Omega-3 alone insufficient for diabetic eye health, warns nutritionist

While Omega-3 fatty acids may offer some benefits, relying solely on them to prevent diabetic retinopathy is not enough, according to nutritionist Tseng Chien-ming. He points to research suggesting a potential 48% reduction in risk, but emphasizes that this finding is primarily based on observational data related to dietary intake.

Tseng explains that individuals consuming higher amounts of Omega-3 often have healthier overall diets. This typically includes eating more fish and less processed meat, leading to better overall dietary quality, improved blood sugar control, and healthier lifestyle habits. He notes that studies involving direct supplementation with DHA or Omega-3 have not consistently shown a delay in the progression of diabetic retinopathy or improvements in vision.

To promote eye health, Tseng recommends incorporating fish into the diet about twice a week, replacing less healthy options like sausages, bacon, fried chicken, or fatty pork. He stresses that cooking methods matter; steaming, baking, or lightly pan-frying fish are preferable to deep-frying, which can add significant amounts of oil, sugar, and sodium, especially when served with heavy sauces.

Ultimately, Tseng reiterates that Omega-3 can be a beneficial addition, but it cannot compensate for poor blood sugar management. The protective association of Omega-3 was more evident in patients with better blood sugar control. The fundamental pillars of eye protection for individuals with diabetes remain diligent management of blood sugar, blood pressure, and blood lipids, coupled with regular eye examinations.