Fenugreek is a common household spice derived from Trigonella foenum-graecum, a plant belonging to the legume family.
Several studies have found that fenugreek may help control appetite and reduce food intake to support weight loss.
One study in 18 people showed that supplementing with 8 grams of fenugreek fiber daily increased feelings of fullness and reduced hunger and food intake, compared to a control group.
Another small study found that taking fenugreek seed extract decreased daily fat intake by 17%, compared to a placebo. This resulted in a lower number of calories consumed over the course of the day.
Cayenne pepper is a type of chili pepper, popularly used to bring a spicy dose of flavor to many dishes.
It contains the compound capsaicin, which gives cayenne pepper its signature heat and provides numerous health benefits.
Some research shows that capsaicin can slightly boost metabolism, increasing the number of calories you burn throughout the day.
Capsaicin may also reduce hunger to promote weight loss.
One small study found that taking capsaicin capsules increased levels of fullness and decreased total calorie intake.
Another study in 30 people showed that eating a meal containing capsaicin reduced levels of ghrelin, the hormone responsible for stimulating hunger.