Weight and Body Shape: Why Standards May Not Fit You - Nutrition

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Weight and Body Shape


I am 153 cm tall and weigh 43 kg.
Everyone says I am too thin, and the standard weight should be around 50 kg.
However, if I were to increase my weight to 50 kg, or even just to 46 kg, my body would appear somewhat overweight.
Why is it that I cannot look average weight without appearing overweight? Thank you for your response.

NO.NO., 20~29 year old female. Ask Date: 2005/03/18

Dr. Liu Yulai reply Nutrition


Hello, based on your weight, you are on the thinner side.
If possible, evaluate your daily food intake to see if it is related to your diet, as inappropriate eating habits can lead to health issues.
Additionally, looking overweight and being overweight are two different matters and are quite subjective; therefore, objective advice is more appropriate.
Wishing you health and happiness.
Liu Yu-lai, Dietitian, National Taiwan University Hospital Yunlin Branch.

Reply Date: 2005/03/18

More Info


Understanding weight and body shape can be quite complex, especially when considering the various standards and metrics used to assess health and fitness. Your situation highlights a common issue: the discrepancy between numerical standards (like BMI) and individual body composition and appearance.

Firstly, let's clarify what BMI (Body Mass Index) is. BMI is calculated using the formula: weight (kg) divided by height (m) squared. For your height of 153 cm (1.53 m) and weight of 43 kg, your BMI would be approximately 18.2, which falls into the "underweight" category according to most BMI classification systems. The typical BMI range for a healthy weight is between 18.5 and 24.9. However, BMI does not differentiate between muscle and fat, nor does it account for body composition, distribution of fat, or individual variations in body shape.

The perception of being "too thin" or "too heavy" is often influenced by societal standards and personal experiences. Many people may perceive a weight of 50 kg for your height as ideal, but this does not necessarily mean that it is the best weight for you. Body composition plays a significant role in how weight is perceived. For instance, if you have a higher muscle mass, you may weigh more but still appear lean and fit. Conversely, if you have a lower muscle mass and higher fat percentage, you may weigh less but appear less toned.

Another important aspect to consider is body shape and fat distribution. Different individuals store fat in various areas of their bodies, which can significantly affect appearance. For example, some people may have a pear-shaped body, where fat is stored in the hips and thighs, while others may have an apple shape, where fat is more concentrated around the abdomen. This distribution can influence how weight gain or loss is perceived visually. Therefore, even if you were to reach a weight of 46 kg, your body shape might still give the impression of being "plumper" due to how and where your body stores fat.

Additionally, genetics plays a crucial role in determining body shape and size. Some individuals naturally have a leaner physique, while others may have a more rounded appearance, regardless of their weight. This genetic predisposition can make it challenging to conform to societal standards of beauty or health.

It's also worth noting that health is not solely determined by weight or appearance. Factors such as diet, physical activity, mental health, and overall well-being are equally important. If you feel healthy, energetic, and are maintaining a balanced lifestyle, that is a significant indicator of your health status, regardless of whether you fit into a specific weight category.

If you are considering weight gain or changes to your body composition, it may be beneficial to consult with a healthcare professional or a registered dietitian. They can provide personalized advice based on your individual health needs, lifestyle, and goals. They can also help you understand how to achieve a healthy weight in a way that feels right for you, focusing on nutrition and exercise that supports your overall well-being rather than just a number on a scale.

In conclusion, while standards like BMI can provide a general guideline for assessing weight, they do not account for individual differences in body composition, shape, and genetics. It's essential to focus on how you feel and your overall health rather than strictly adhering to societal standards. Embrace your unique body and prioritize a healthy lifestyle that makes you feel your best.

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