Benefits of Sumac Powder for Obesity and Depression
Uncontrolled appetite and the difficulty of following a low-calorie diet represent common obstacles in treating obesity, especially when accompanied by depression. A recent randomized clinical trial has examined the effects of supplementation with sumac powder (Rhus coriaria L.) in overweight or obese women suffering from depression.
Sumac is a spice belonging to the Anacardiaceae family, rich in polyphenols, flavonoids, tannins, and terpenoids. These bioactive compounds have previously been associated with metabolic health benefits, including reduced insulin resistance and body weight management. However, few studies have specifically focused on sumac’s direct effects on appetite, particularly in subjects with depression associated with overweight and obesity.
Properties and Potential Appetite Benefits
The study, conducted on 60 women, assessed whether daily supplementation with 3 grams of sumac, combined with a calorie-restricted diet, could modulate appetite and improve metabolic parameters related to hunger regulation, including leptin, insulin, and neuropeptide Y (NPY).
The results obtained after a period of 12 weeks showed promising effects, highlighting the potential role of sumac as a natural adjunct in managing obesity complicated by depression.
The current study highlighted how sumac consumption significantly reduced the appetite score compared to the placebo group. The observed average reduction was 13%, a clinically relevant result that facilitates adherence to restrictive diets and prevents long-term weight regain.
Effects of Sumac on Metabolic Parameters
In addition to improved appetite management, sumac supplementation demonstrated positive effects on several key metabolic parameters:
- Leptin: significantly reduced serum levels of leptin, a hormone involved in satiety regulation. Elevated leptin can indicate leptin resistance, a common phenomenon in obesity, and the reduction suggests improved hormone sensitivity.
- Insulin and Fasting Blood Sugar: supplementation also significantly reduced serum insulin levels and fasting blood glucose, indicating improved glucose metabolism and insulin sensitivity.
- Neuropeptide Y (NPY): led to a significant decrease in serum levels of NPY, a potent appetite stimulant. This reduction further supports sumac’s role in modulating food desire.
- HOMA-IR and QUICKI: indices of insulin resistance (HOMA-IR) and insulin sensitivity (QUICKI) showed significant improvements, further confirming sumac’s beneficial metabolic effects.
These results are clinically significant, suggesting a potential effective natural complementary intervention for managing both hunger and insulin resistance—key challenges faced by obese individuals with depression during weight loss programs.
Possible Mechanisms and Future of Sumac
The precise mechanism by which sumac exerts these effects is not yet fully understood, but it is hypothesized that its polyphenolic compounds act directly on metabolic and neuroendocrine signals involved in appetite regulation and energy metabolism.
Sumac powder could represent a valuable additional tool in dietary strategies aimed at managing body weight and appetite, particularly in overweight or obese women suffering from depression.
The results clearly indicate potential benefits in controlling hunger and modulating metabolic signals, suggesting that integrating sumac into a controlled dietary regime can facilitate achieving and maintaining weight loss goals.
If your company is interested in creating or manufacturing a product as a supplement to obesity treatment:
Source: Feb. 2023, “Sumac (Rhus coriaria L.) powder supplementation has beneficial effects on appetite in overweight/obese women with depression: A randomized controlled trial”, PubMed.






