The Sirtfood
Diet was founded in 2016 by nutritionists Aidan Goggins and Glen Matten. It is touted
for rapid weight loss, claiming to help people lose seven pounds in seven days.
But this requires you to restrict yourself to 1,000 calories per day for that
time. But the Academy of Nutrition and Dietetics recommends 1,600 to 2,400
calories a day for women and 2,000 to 3,000 a day for men.
Another one of
the diet's distinguishing qualities is that it incorporates more indulgent
foods like dark chocolate and red wine alongside traditional, healthier options
like kale, strawberries, and other whole foods.
The Sirtfood
Diet is built around natural compounds found in fruits and vegetables called
polyphenols. Some polyphenols mimic the effects of fasting and exercise by
activating proteins in our bodies called sirtuins, which play a role in how the
body metabolizes sugar and stores fat, especially during periods of fasting or
severe caloric restriction.
For the
Sirtfood Diet, Goggins and Matten recommend eating a lot of foods that are rich
in polyphenols in order to activate sirtuins in the body. They call these foods
"sirtfoods" — hence the diet's name.
Common
sirtfoods that the diet promotes include:
- Arugula
- Blueberries
- Buckwheat
- Celery
- Extra virgin olive oil
- Kale
- Onions
- Parsley
- Soy
- Strawberries
- Walnuts
Followers of
this diet plan can also expect to drink a lot of sirtfood-full juices that
contain ingredients like kale, arugula, parsley, green apple, ginger and matcha
powder.
The Sirtfood
Diet has two phases
Phase 1
Length: 7 days
Days 1-3: drink
three green juices and eat one sirtfood-rich meal per day. The daily caloric
intake should be 1,000 calories regardless of age, gender, or weight.
Days 4-7:
include two green juices and two sirtfood meals bringing the caloric intake up
to 1,500 calories. This phase is intended to shed 7 pounds in the first week,
mostly due to the drastic calorie reduction.
Phase 2
Length: 14 days
In this phase,
you will have three sirtfood meals and one green juice each day. The focus is
not on counting calories, but eating balanced, sensibly portioned meals.
Dieters are expected to steadily lose weight.
After three
weeks, when phase 2 has ended, you can drink green juice each day and eating a
sirtfood-rich diet to sustain weight loss.
But dietitians
caution that people with diabetes or other chronic conditions could face
serious health risks on this diet. So, before trying, it is always advised to
consult a doctor first about potential risks you may face.
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