A creatinine level dropping from 7.1 to 0.9 in just 2 days would be an extraordinary change and is not typical for ordinary diet changes or “kidney health fats.” Creatinine usually changes over days to weeks depending on the cause (for example, hydration status, treatment of an acute kidney problem, medication effects, or lab variation). A result like this should be interpreted by a clinician who knows the full situation.
Regarding fats and kidney health:
4 fats that are generally considered kidney-friendly choices
1. Extra virgin olive oil
- Rich in monounsaturated fats
- Contains antioxidant compounds
- Often fits well into heart-healthy eating patterns, which is important because kidney disease increases cardiovascular risk
2. Fatty fish (such as salmon, sardines, trout)
- Provides omega-3 fatty acids
- May help support cardiovascular health and reduce inflammation
3. Walnuts
- Provide unsaturated fats and plant omega-3s
- Also contain fiber and antioxidants
- Portion size matters because they are calorie-dense and may need adjustment in some kidney diets
4. Avocado
- Provides mostly monounsaturated fats
- Nutritious, but people with advanced kidney disease may need to monitor potassium intake
4 fats to limit or be cautious with
1. Trans fats
Often found in some processed foods and partially hydrogenated oils. They can worsen cardiovascular risk.
2. Excess Saturated fats
Large amounts may raise LDL cholesterol and increase heart strain. Sources include:
- Fatty processed meats
- Large amounts of butter
- Some high-fat dairy products
3. Deep-fried and highly processed fats
Foods cooked repeatedly in oil or heavily processed snacks may contribute to poor cardiovascular health.
4. Excessive amounts of any high-calorie fat source
Even “healthy” fats can be problematic in excess, especially if someone has weight, blood pressure, or metabolic concerns.
Important note for people with kidney disease
The “best” fat choices depend on kidney function, potassium and phosphorus levels, blood pressure, diabetes status, and whether someone is on dialysis. A person with chronic kidney disease may need a more individualized plan.
If you are referring to a real case where creatinine went 7.1 → 0.9 in 48 hours, share:
- age and sex
- whether it was blood creatinine
- diagnosis (acute kidney injury, dehydration, infection, etc.)
- medications/treatment given
- urine output changes
and I can help interpret what might explain such a rapid change.
