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The Morning Banana Diet, which prescribes eating bananas for breakfast to lose weight, is back in vogue. We look at why there’s more to the diet than meets the eye, as a nutritionist explains how to incorporate it for healthy, long-term weight loss. Photo: Shutterstock

Explainer | What is the Morning Banana Diet trending on social media? An expert reveals how it works and how to use it for long-term weight loss

  • Eating bananas for breakfast to lose weight trended on Japanese social media years ago. Now it’s back – but there’s more to the diet than the name suggests
  • Cutting out alcohol, caffeine and nighttime snacks, and not eating until full, are key tenets, as are a balanced diet and exercise, a nutritionist says
Wellness

Waking up to a breakfast of bananas, a strategy for weight loss, is trending on social media – again.

Japanese pharmacist Sumiko Watanabe developed the Morning Banana Diet, also known as the “Asa Banana Diet” – asa is Japanese for “morning” – in 2008 for her husband, who reportedly lost nearly 17 kilograms (37 pounds) while he was on it.

It became all the rage when he wrote about it for one of Japan’s largest social networking services, Mixi. Local grocers quickly sold out of bananas as weight-loss seekers enthusiastically embraced the diet.

The diet’s appeal lies in its flexibility and simplicity. The official website says followers can start their day by eating as many bananas as they like for breakfast, and drinking room-temperature water.

Eating bananas for breakfast to help lose weight is trending on social media – again. Photo: Shutterstock
After 15, or preferably 30, minutes, you can drink ginger tea or a similar beverage to warm yourself from the inside, the instructions say.

The diet also allows one snack a day, preferably Japanese confectionery or chocolates.

The list of foods not to eat while on the diet includes dairy products, ultra-processed foods, fried items, biscuits, pizza and fast food.

There are no recommended strict meal plans; for lunch and dinner, followers can eat what they like – apart from the restricted items.

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However, it is advised not to eat anything after 8pm, and not to have alcoholic or caffeinated drinks. Water is the suggested beverage of choice.

Those following the diet should stop eating when they are 80 per cent full – a principle in keeping with the ancient Japanese concept of hara hachi bun me.

Residents of Okinawa – one of the world’s five Blue Zones, where residents are known to live to 100 years or beyond – practise this.

Bananas are rich in fibre and nutrients, offering a healthy boost of energy while contributing to a sustained feeling of fullness. Photo: Shutterstock
The traditional Indian medicine known as Ayurveda endorses a similar principle. It recommends filling a third of one’s stomach with food, another third with water and leaving the rest empty.

Indian sages living in the Himalayas were known to live a long, disease-free life in cold climes by following this discipline.

Nutritionists say the heart of the morning banana diet is healthy eating habits such as portion control, and eating nutritious foods while avoiding unhealthy ones.

Followers are also advised to maintain a diet journal – and get a good night’s sleep.

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“The diet is premised purely on common sense and a traditional Japanese lifestyle, which is considered healthy,” says Delhi-based nutritionist Ruchika Sodhi.

Like any other diet, its success depends on an individual’s overall lifestyle, metabolism and physical activity levels.

“While it might be a good kick-start to a weight-loss journey, long-term success necessitates a more inclusive approach, like the inclusion of regular exercise and a balanced and diverse diet for optimal benefits,” Sodhi adds.

Delhi-based nutritionist Ruchika Sodhi. Photo: Ruchika Sodhi

As bananas are rich in fibre and nutrients, they offer a healthy morning boost of energy while contributing to a sustained feeling of fullness – potentially curbing excessive food consumption, she says.

“Bananas are a good source of potassium and soluble and insoluble fibre, which regulates body fat, fights toxins and energises the body. The fruit is also very low in cholesterol, sodium and saturated fats,” she adds.

The fruit’s fibre, she explains, bulks up in the stomach, triggering a longer feeling of satiety. Bananas also have resistant starch, which begins to ferment in the digestive tract, she says, and accelerates fat burning.

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Sodhi recommends consulting a healthcare professional before making significant changes to one’s diet and eating bananas daily.

Follow the diet only after this, “to ensure that your weight-loss journey is safe, sustainable, and customised to your individual needs and health requirements”.

Since bananas are also loaded with sugar, diabetics should avoid the diet, Sodhi says. An average banana has about 120 calories, so overindulging may result in weight gain instead of loss.

The Morning Banana Diet may be a good kick-start to a weight-loss journey, but a balanced diet and regular exercise are necessary for long-term success, according to Sodhi. Photo: Shutterstock
Eating only bananas may result in protein or micronutrient deficiency affecting overall health. For dietary diversity and sustainable weight loss, incorporate a range of fruits, vegetables, lean proteins and whole grains, Sodhi says.

New Delhi-based homemaker Sushma Gupta, 33, who lost 8.5 kilograms (18.7 pounds) in a year by following the banana diet after her second pregnancy, says that it “worked wonders” for her.

“I began the diet last year and have been following it in combination with a four-kilometre [2.5-mile] brisk walk daily, and mindful consumption of food,” she says.
For dietary diversity and sustainable weight loss, incorporate a range of fruits, vegetables, lean proteins and whole grains into your diet, Sodhi says. Photo: Shutterstock

Adopting the diet not only helped her lose weight, she says, but also helped improve her overall lifestyle, which had lacked discipline.

Inspired by her weight-loss success, two of Gupta’s friends also started following the banana diet – but could not maintain it.

“They gave up after two weeks. The diet seems simple, but what it actually entails is a lifestyle modification, which some people find tough to adhere to,” Gupta says.

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“However, those who persevere are richly rewarded.”

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