Skip to content
Prof. Dr. Mustafa Özdoğan · Medical Oncologist

Adele’s Incredible Weight-Loss Transformation and the Rising Popularity of the SIRTFOOD Diet!

Adele’s Incredible Weight-Loss Transformation and the Rising Popularity of the SIRTFOOD Diet!
In this article

The incredible transformation of British musician Adele, whose voice captivates audiences and who has a large worldwide fan base, made a major impact on social media. After reports that Adele had lost a substantial amount of weight with the Sirtfood diet, this eating pattern began to gain popularity. The SirtFood diet first entered our lives in 2016 with the book "Sirtfood Diet" by pharmacist Aidan Goggins and nutritionist Glen Matten.

What Is the SIRTFOOD Diet?

The main aim of the SirtFood diet is to combine calorie restriction with eating foods that activate a protein called sirtuin. Sirtuin is a type of protein that protects cells in the body from dying or becoming inflamed because of disease. Blueberries, strawberries, red wine and dark chocolate are among the leading sirtfoods, while other foods that increase sirtuin activation include green tea, onions, celery, parsley, arugula, Medina dates, capers, turmeric, cabbage, walnuts, buckwheat and citrus fruits. Limited quantities of red meat, milk and dairy products, fish and poultry are allowed.

The Sirtfood diet, which consists of foods rich in polyphenols, is also claimed to have anti-inflammatory and antioxidant effects. The foods in the Sirtfood diet are also frequently consumed in the world’s Blue Zones, regions where people live the longest. Some studies argue that foods enhancing sirtuin activation speed up metabolism and may extend lifespan. However, even if the foods chosen are healthy, SirtFood is a calorie-restricted diet, which creates other concerns. More comprehensive scientific studies are therefore needed before its effects can be discussed. The Sirtfood diet recommends limiting intake to between 1000 and 1500 calories daily. It has two phases.

  • Phase 1 (7 days); for the first 3 days, one meal containing sirtfoods and 3 servings of green juice are consumed with a 1,000-calorie limit. For the remaining days of the week, 2 meals and 2 green juices are consumed with a 1,500-calorie limit.
  • Phase 2 (14 days); this is known as the maintenance phase. It involves 3 main meals prepared from sirtfood recipes and 1 green juice daily.

The authors of The Sirtfood Diet claim that it is designed as a lifestyle rather than a one-time diet. They say that people hoping to lose more weight afterward can repeat these two phases. After the first 3 weeks, they recommend continuing to eat a diet rich in sirtfoods and to drink freshly prepared green juice daily.

The SirtFood Diet Is Not Healthy or Sustainable!

Although the foods consumed on the SirtFood diet seem beneficial, the diet offers little variety. There is no evidence that eating only certain types of foods benefits the body. In particular, protein-rich animal and plant foods not included among sirtfoods, such as chicken, fish and legumes, healthy fats and whole grains are severely restricted or not used.

"Harvard Health" considers diets below 1,500 calories neither healthy nor sustainable and warns that they may put people at risk of malnutrition.

This calorie intake, which would be inadequate even for a child, is of course insufficient to provide an adult with the energy needed to function. In diets with strict calorie or energy restriction, such as SirtFood, the body uses glycogen as well as burning fat and muscle. Each glycogen molecule requires 3-4 water molecules to be stored. When the body faces an energy shortage and uses up glycogen, it also loses this water. In the first week of severely calorie-restricted diets, only one-third of the weight loss comes from fat. The other two-thirds comes from water, muscle and glycogen.

The Sirtfood Diet book also includes the results of a pilot study said to have been conducted by its authors, involving 39 participants from fitness centers. According to the study, participants followed the diet and exercised daily for one week. By the end of the week, they had lost an average of 7 kilograms and maintained or even increased their muscle mass.

However, these results should not be surprising. Limiting daily intake to 1000 calories while exercising will almost always result in weight loss. Moreover, when calorie intake increases again, the body replenishes its glycogen stores and the lost body weight returns.

Experts also warn that the low calorie content of the SirtFood diet may initially cause symptoms such as headache, dizziness and fatigue. They add that it may be harmful for people with diabetes, those previously diagnosed with an eating disorder, and active individuals working in jobs that require energy.

Conclusion

Although the Sirtfood diet appears to consist of healthy foods, restricting food choices so narrowly is problematic. Because it severely limits calories and lacks important food groups, it is expected to harm the body in the long term. It may even be particularly dangerous for people with an active lifestyle or a history of chronic disease or eating disorders.

Therefore, although losing weight by drinking green tea, eating strawberries and chocolate, and having a little wine may sound appealing, it would be appropriate to consult your doctor and a nutritionist before trying fad diets like this. Instead of falling for diets that briefly gain popularity, we should choose eating patterns whose health benefits have been demonstrated over many years. Balanced dietary patterns that include all food groups, such as the Mediterranean Diet, can help you lose weight healthily and improve your health. *

Sources

1. Gabby Landsverk.
Demand is rising for Adele's rumored weight-loss plan, the sirtfood diet. Here's how it works.
insider.com - 27 May 2020.

2. Taylor Jones.
The Sirtfood Diet: A Detailed Beginner's Guide.
healthline.com/nutrition/sirtfood-diet - 13 August 2017.
DROZDOGAN AI

Explore this article together

Ask about the article and read answers alongside published sources from our site.

DROZDOGAN AI

Drozdogan Assistant

Adele’s Incredible Weight-Loss Transformation and the Rising Popularity of the SIRTFOOD Diet!

Ask about the article and read answers alongside published sources from our site.

Conversation and privacy information

Drozdogan Assistant answers this conversation. Authorized site administrators may review it for quality. Do not share personal information.

Replies use OpenAI infrastructure. Questions and replies are processed by that service; conversation records are stored on our site. Do not share identifying, contact or personal health information.

0 / 1000

For information only; no personal diagnosis or treatment advice.

Related articles

Explore other articles on this topic.

Stay informed

Receive new articles and scientific updates by email.

Google Analytics runs on public pages independently of this window and may use analytics cookies. Your choice here controls external services only.

Cookie policy