Skinny Fat Body Image – Question

Hey, Dr. Skinny Fat. I lost 51 pounds and am now at a healthy BMI of 24.9. But I am experiencing skinny fat on my thighs, hips, waist, lower back, love handles, stomach, midriff, mid & upper back, and triceps, which is negatively affecting my body image and self-confidence. People keep telling me that I lost muscle during my weight loss, which caused the skinny fat, and that I just need to lift weights to fix it.

Lifting weights makes sense. But, I don’t think I ever had the muscle to begin with. After reading the science on this site and learning more about the Standard Body Type One (BT1), including all the celebrity examples, I have never looked like that.

I admit my diet could be better, and I probably did lose some muscle during my weight loss, but that does not explain the muscle deficiency all over my body that I am sure I have had from day one. As your site says, and I remember learning in anatomy in school, muscle doesn’t become fat. And fat cannot turn into muscle. All this skinny fat is damaging my body image. What do I do?

Skinny Fat Body Image – Question

The foundation of your body composition and shape is genetic (1, 2). Understanding your unique genetics, including muscle tissue and muscle fiber ratio from birth, is vital to a healthy body image. You have initially identified that it is unlikely you are a Standard Body Type One (BT1)(3) with all 600+ muscles fully developed. You can be more certain by taking the Scientific Body Type Quiz.

Once you understand why your unique body is the shape and composition that it is, then you can focus on proper diet, exercise, and lifestyle to keep your expectations realistic. Currently, along with a healthy diet and lifestyle, including quality sleep, weightlifting (4, 5, 6) is the best option to help recomposition your body to reduce your skinny fat (7) by adding muscle mass. However, in line with keeping things grounded and real, adding muscle mass is not (8, 1) permanent. It does not permanently fix your skinny fat (lack of genetic muscle).

Any muscle mass you add, you will have to maintain forever (1, 8). If/when you stop the exercise(s) that built the muscle, you will gradually lose it and eventually return to your original genetic body composition, including any skinny fat. So, the key is figuring out a balance between the short- and long-term and how much exercise you are willing to do consistently and regularly to maintain and manage your body. The younger you are, the more motivated you are. As the years pass, your motivation will likely wane, as life and the realities of human body aging settle in.

Skinny Fat Body Image – Scientific Health Quizzes

At present, our Scientific Body Type Quiz, as part of the Scientific Health Quizzes, is the only accurate way to estimate skinny fat. Until we complete our MRI Study (9), there is no way to officially measure total genetic muscle tissue (or lack of/skinny fat) from birth, or ever, just as there is no baseline measurement to compare it to, even if an accurate measurement did exist. Nor is there an official way for doctors to diagnose skinny fat.

If you spend any time on social media, the common spiel claims that DEXA and InBody can determine skinny fat (lack of genetic muscle), which is 100% false and backed by zero science. Neither of those technologies can measure muscle tissue in any capacity. At best, they can estimate body fat and offer an inaccurate lean body mass (LBM) measurement. At worst, they are truly useless.

There is a free option to take the Scientific Body Type Quiz, along with the Scientific Metabolism, Diet, Exercise, and Lifestyle Quizzes to help you paint a more whole picture of your body shape and composition — including skinny fat — as well as your overall health. Accounts are free, secure, private, and anonymous (depending on what info you choose to give).

References

1. Skinny Fat Science: Is Muscle/Mass Genetic and How Does It Affect Skinny Fat?, November 20, 2024. https://skinnyfat.fellowone.com/skinny-fat-science/is-muscle-mass-genetic-and-how-does-it-affect-skinny-fat/
2. Skinny Fat Science: Is Skinny Fat Genetic?, November 27, 2024. https://skinnyfat.fellowone.com/skinny-fat-science/is-skinny-fat-genetic/
3. Britannica: human muscle system, Shane W. Cummings and Robin Huw Crompton (Fact-checked by the Editors of Encyclopaedia Britannica). https://www.britannica.com/science/human-muscle-system
4. Skinny Fat Science: Best Skinny Fat Resistance Exercises, September 4, 2024. https://skinnyfat.fellowone.com/skinny-fat-science/best-skinny-fat-resistance-exercises/
5. Skinny Fat Science: Resistance Training for Skinny Fat – Weight Lifting, 40 Optimal Exercises (with Images), May 7, 2025. https://skinnyfat.fellowone.com/skinny-fat-science/resistance-training-for-skinny-fat-weight-lifting-40-optimal-exercises-with-images/
6. Skinny Fat Science: The Best Skinny Fat Exercise, According to Science, April 2, 2024. https://skinnyfat.fellowone.com/skinny-fat-science/the-best-skinny-fat-exercise-according-to-science/
7. Skinny Fat Science: What is Skinny Fat?, July 26, 2024. https://skinnyfat.fellowone.com/skinny-fat-science/what-is-skinny-fat/
8. Skinny Fat Science: How To Fix Skinny Fat, July 27, 2024. https://skinnyfat.fellowone.com/skinny-fat-science/how-to-fix-skinny-fat/
9. Skinny Fat Science: Scientific Skinny Fat MRI Study – Proving What Skinny Fat Is, March 26, 2025. https://skinnyfat.fellowone.com/skinny-fat-science/scientific-skinny-fat-mri-study-proving-what-skinny-fat-is/