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5 common myths about weight

3
 min read · 
16 November 2025
5 common myths about weight
There is a lot of information about weight loss, but not all of it is accurate.

Some myths can be unhelpful or even make it harder to reach your goals. Here are five common myths and the facts behind them.

1. You just need more willpower

Myth: If you cannot lose weight, it means you are not trying hard enough.

Fact: Weight is influenced by many factors, including genetics, hormones, mental health, sleep, medicines, and the environment you live in. Willpower alone is rarely enough. Support, planning, and the right strategies make a real difference.

2. Carbs are always bad for you

Myth: Cutting out all carbohydrates is the best way to lose weight.

Fact: Wholegrain carbohydrates such as brown rice, oats, and wholemeal bread provide important nutrients and fibre. It is the refined carbs and added sugars you may want to limit, not all carbs.

Refined carbs are those that have been processed to remove most of their fibre and nutrients. They are found in foods like white bread, pastries, many breakfast cereals, and sugary snacks or drinks. These can cause blood sugar levels to rise and fall quickly, which may increase hunger.

3. Rapid weight loss is the most effective

Myth: The faster you lose weight, the better.

Fact: Quick weight loss often leads to muscle loss and is harder to maintain. Slow, steady changes are more sustainable and better for protecting your health.

4. You have to exercise for hours every day

Myth: Long, intense workouts are the only way to lose weight.

Fact: Regular movement of any kind helps. Brisk walking, cycling, gardening, and short strength sessions all count. The key is finding activities you enjoy and can do regularly.

5. Once you lose weight, it stays off for good

Myth: Reaching your goal weight means the hard work is done.

Fact: Weight management is ongoing. Your body may try to return to its previous weight, so keeping up healthy habits is important for the long term.

Disclaimer

This article is for educational purposes only and should not be used as a substitute for medical advice. Always speak to your doctor, nurse or pharmacist about your individual care. The information reflects NHS and NICE guidance at the time of publication.

Last reviewed: 
November 2025
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