How to Get Rid of Underarm Fat: Exercises and Strategies That Actually Work
How to Get Rid of Underarm Fat: Exercises That Actually Work
You want to know how to get rid of underarm fat — the soft tissue that bulges near your armpit in a tank top or sleeveless dress. Exercise for underarm fat is a common search, but the approach requires understanding that no single exercise melts fat from one specific spot. Getting rid of armpit fat requires systemic fat loss combined with exercises that build the muscles surrounding that area, creating a more defined appearance even before significant fat reduction. Whether you’re focused on getting rid of underarm fat for an event or as a long-term fitness goal, armpit fat workouts serve as one component of a larger plan.
This guide walks through the most effective exercise for underarm fat, diet considerations, and realistic timelines — so you know exactly what to expect and when.
Why Spot Reduction Doesn’t Work
Exercise for underarm fat that targets this specific area cannot burn the fat stored there in isolation. This has been tested in multiple studies, including a well-known trial where participants did hundreds of arm exercises targeting one side — and fat loss occurred equally across both sides and the rest of the body. Fat is mobilized from adipose tissue throughout the body in response to overall energy deficit, not from the muscles working hardest nearby.
What targeted armpit fat workouts do accomplish: they build muscle mass beneath and around the fat deposit. As the pectoralis minor, serratus anterior, and lateral deltoid develop, the soft tissue visually looks more compact and defined even without fat loss.
Best Exercises for the Underarm Region
These movements build the muscles most directly relevant to the underarm area:
- Push-up to downward dog: Start in push-up position, lower fully, then press up and shift into downward dog. Three sets of 8–10. Activates both the serratus anterior (which sits directly under armpit fat) and the pectoral borders.
- Lateral raises: 3 x 12–15 with 5–10 lb dumbbells. Targets the medial deltoid, shaping the shoulder cap and reducing the visual width of the underarm.
- Dumbbell pullovers: Lying on a bench, hold one dumbbell with both hands and lower it behind the head, then pull it back over. Three sets of 12. Stretches and contracts the serratus anterior and long head of the tricep — two muscles framing the underarm area.
- Bent-over rows: 3 x 10–12 with dumbbells or a barbell. The latissimus dorsi pulled tight through training creates a broader, tapered back that makes underarm fat deposits look smaller in proportion.
- Tricep cable pushdowns or dips: Tighten the back of the upper arm, which overlaps visually with the underarm region. Three sets of 12–15.
Cardio’s Role in Reducing Underarm Fat
Consistent cardiovascular exercise creates the calorie deficit needed for systemic fat loss. Zone 2 cardio (sustained effort at 60–70% max heart rate) for 30–45 minutes, four to five days per week, burns fat efficiently without excessive muscle breakdown. Combined with the resistance training above, cardio creates the calorie deficit that will gradually reduce fat in the underarm region along with the rest of the body.
Diet Adjustments That Support Fat Loss in This Area
No food targets armpit fat specifically, but a 300–500 kcal daily deficit supports 0.5–1 lb/week of total fat loss. Focus protein intake at 0.7–1.0 g per pound of body weight to preserve lean mass. Reducing dietary sodium cuts water retention in subcutaneous tissue, which can make the underarm area look puffier than the actual fat content suggests — some of the immediate visual improvement people see early in a diet is water leaving subcutaneous tissue rather than fat being burned.
Timeline and Progress Tracking
Most people see noticeable improvement in the underarm area within eight to twelve weeks of consistent training and a moderate calorie deficit. Take photographs from a consistent angle every two to three weeks. Measure upper arm circumference monthly. The combination of muscle development (visible within four to six weeks) and fat loss (ongoing over months) creates the most significant visual change.
Key takeaways: Exercise for underarm fat works by building the surrounding muscles, while systemic fat loss from a calorie deficit reduces the fat deposit itself. The combination of armpit fat workouts three times per week with consistent cardio and a moderate calorie deficit produces visible results in eight to twelve weeks for most people dedicated to getting rid of underarm fat.
