The idea behind spot reduction is appealing: work one area of the body hard enough and the fat sitting over that area should disappear. For abdominal fat, that usually means crunches, sit-ups, planks, twists, or another core-focused exercise performed with the expectation of shrinking the waistline. Those movements can absolutely make the abdominal muscles stronger, more capable, and more resilient. What they do not reliably provide is precise control over where the body reduces stored fat.

For athletes and anyone committed to long-term physical progress, that distinction matters. Training works best when the goal of an exercise matches what that exercise can actually accomplish. Greg’s experience with endurance, discipline, business leadership, and adversity reflects a broader principle that applies here too: meaningful change tends to come from consistent work across the whole system, not from chasing a shortcut in one isolated place.

Strengthening your abs is not the same as removing abdominal fat

A muscle can become stronger without a dramatic change in the layer of fat surrounding it. This is one of the most important distinctions in the spot-reduction conversation.

Imagine someone adds several challenging core sessions to the week. Over time, that person may be able to hold a plank longer, stabilize the torso more effectively, lift with better control, or generate more force through the trunk. Those are real adaptations and worthwhile outcomes. But they should not automatically be interpreted as evidence that abdominal fat is being selectively burned away.

The same principle applies elsewhere. Performing hundreds of triceps extensions does not give a person direct control over fat stored around the upper arms. Doing endless inner-thigh exercises does not guarantee selective fat loss from the thighs. Exercise can target muscles with great precision. Fat loss is far less controllable by body region.

Where does fat loss actually come from?

Body fat serves as stored energy. Changes in body weight and fat mass are influenced by the relationship between energy intake and energy expenditure over time, although the body’s response is more complex than a simple daily arithmetic equation. The National Institute of Diabetes and Digestive and Kidney Diseases notes that sustainable eating patterns and physical activity both play important roles in losing or maintaining weight.

Exercise contributes by increasing energy expenditure and by creating adaptations that can improve fitness, strength, function, and body composition. Different forms of training also provide different benefits. Aerobic work can develop cardiovascular fitness and increase energy expenditure. Resistance training can build or preserve muscle and improve strength. Core training can improve trunk strength, stability, and movement quality.

None of those benefits require pretending that one exercise can dictate exactly which fat cells the body will draw from first.

Why abdominal exercises can still make a visible difference

There is a reason people sometimes believe their ab routine is directly burning belly fat: several changes can happen at the same time.

Someone who begins training consistently may improve nutrition, walk more, perform cardiovascular exercise, lift weights, sleep more intentionally, and reduce overall body fat while also doing abdominal exercises. Their waist may become smaller, and their abdominal muscles may become stronger or more visible. It is easy to give the crunches all the credit even though the broader routine is doing much of the work.

Core training may also improve posture, trunk control, and the way a person carries the body. Those changes can affect appearance even when changes in body fat are modest. The training still matters. The mistake is assigning it a fat-loss power that it does not reliably possess.

There is an important scientific nuance

The phrase “spot reduction does not work” is useful shorthand, but science rarely rewards absolute statements. Research on localized exercise and fat use has produced mixed findings, and a 2023 randomized controlled trial indexed by the National Library of Medicine reported greater local trunk fat reduction after a specialized abdominal aerobic endurance protocol in adult men.

That finding is interesting, but it should not be confused with the familiar promise that doing a few sets of crunches will selectively melt abdominal fat. The researchers used a specific endurance-style abdominal protocol, studied a particular population, and noted limitations regarding how broadly the findings could be applied. A single specialized result does not turn ordinary spot training into a reliable strategy for controlling where fat loss occurs.

The practical takeaway remains much more grounded: train individual muscles because you want those muscles to become stronger and more functional. Approach fat loss through sustainable whole-body habits rather than expecting a local exercise to determine exactly where stored fat disappears.

What people often miss about abdominal fat

That distinction is especially important in endurance sports. A strong core can help an athlete maintain position, transfer force, manage fatigue, and move efficiently. Those performance benefits matter whether or not the abdominal muscles look dramatically different in the mirror.

For someone interested in performance, the better question is often not, “Which exercise burns the fat right here?” It is, “What type of training helps me become stronger, fitter, and more capable while supporting the body-composition goals that matter to me?”

A more useful approach than chasing spot reduction

Instead of building a routine around one body part, think in terms of a complete system. Regular movement, resistance training, cardiovascular work, adequate recovery, and sustainable eating habits can reinforce one another. The exact approach should reflect an individual’s health, experience, preferences, and goals.

For example, someone might perform core work two or three times during a broader training week because trunk strength supports lifting, running, cycling, swimming, or everyday movement. Those exercises have a clear job. They are not being asked to perform the unrelated job of choosing which fat deposits the body uses.

This approach also creates a healthier way to measure progress. Improvements in strength, endurance, consistency, energy, movement quality, and overall body composition can all matter. A single measurement around one body part does not have to define whether the work is succeeding.

Think like an endurance athlete: build the system

Endurance training offers a useful lesson here. An athlete does not prepare for a difficult race by searching for one magical workout. Progress comes from repeated sessions, recovery, pacing, strength, nutrition, judgment, and the willingness to keep showing up when the result is not immediately visible.

The same mindset is more useful for body composition than trying to outsmart physiology with hundreds of repetitions for one body part. There may be no dramatic shortcut, but there is a process. Consistent, purposeful work tends to be far more valuable than a tactic built around instant or highly localized results.

That philosophy also sits at the heart of Greg’s broader speaking work on resilience, leadership, and forward motion: meaningful progress is often built through the next useful action, repeated over time.

Frequently asked questions

Do crunches burn belly fat?

Crunches use and strengthen abdominal muscles, but they should not be treated as a reliable way to selectively remove the fat stored over those muscles. They can be useful as one part of a broader exercise program.

Can planks make your stomach flatter?

Planks can improve core strength and trunk stability. Changes in abdominal appearance may also occur when overall body composition changes, but planks alone do not give you precise control over abdominal fat loss.

What exercise burns abdominal fat best?

There is no single exercise that can reliably tell the body to remove fat only from the abdomen. A broader program that includes appropriate aerobic activity, resistance training, regular movement, and sustainable nutrition is a more practical approach to changing overall body composition.

Should I stop doing ab exercises if I want to lose belly fat?

No. Abdominal exercises can be valuable for strength, stability, athletic performance, and everyday movement. The important distinction is to do them for those benefits rather than relying on them as a targeted fat-removal method.

Does new research prove spot reduction works?

Some research has reported localized effects under specialized exercise conditions, including a 2023 randomized trial involving abdominal aerobic endurance exercise. The evidence does not justify assuming that conventional localized exercises such as crunches provide predictable, targeted abdominal fat loss. Research in this area continues to evolve.

This article is for educational purposes only and is not medical advice. For diagnosis, treatment, or personalized medical guidance, please speak with a qualified healthcare professional.

Sources & further reading

• National Institute of Diabetes and Digestive and Kidney Diseases: Eating & Physical Activity to Lose or Maintain Weight
• National Library of Medicine: Abdominal aerobic endurance exercise reveals spot reduction exists: A randomized controlled trial