Sweet potato cake


400-450 grams of sweet potato

1 egg

50 grams butter

4 tablespoons erythritol

2 tablespoons coffee

1 dl spelt flour/oatmeal/other flour

3 tablespoons cocoa

1/2 teaspoon cinnamon (optional)

1/2 teaspoon cloves (optional)

A pinch of salt


1 package Philadelphia light

1 teaspoon vanilla powder

2 tablespoons erythritol powdered sugar



Peel and boil the sweet potato, and let them cool.

Mash the cold potatoes and mix them with the remaining ingredients. Spread the dough out on a griddle with parchment paper. The dough should be about 1-2 cm high. Bake at 180 degrees Celsius for 20 minutes.

Let the cake cool and apply the cheese cream. Roll up, slice and serve.

The best follow their advice

The training offered at powelactive.com is based on decades of research from NTNU, and everything from heart patients to athletes follow the same training program as we emphasize in our pages: 4×4 intervals and 4×4 strength training.

It is our associates and Professors of Medicine, Jan Hoff and Jan Helgerud, who are the scientists behind the popular and effective form of exercise, and we want to give you a little insight into their everyday work.

Middle East football stars

Earlier in March, Jan Hoff, traveled to a small oasis outside Dubai to advise the best football team in the United Arab Emirates (UAE): Al Ain. This football team is currently 2nd in the series, with only a few games remaining. They also play in the Champions League for the Middle East.

One of Hoff’s students, Kenny McMillan, work with the football team in the UAE. He has a PhD from Faculty of

Medicine at NTNU and now has a 3-year contract with the team. His job is to build “Exercise Science” in the team, together with a team that organizes physical training, nutrition and game analysis.

Aiming for the top

Hoff traveled to Al Ain to assist and advise on construction of exercise physiology laboratory and organization of activities that will bring the club and the UAE into the top of international football.

Hoff, Helgerud and McMillan have previously worked in the football clubs Celtic, Aston Villa and Newcastle.

Everyday work

Normally Hoff and Helgerud works at the Department of Circulation and Imaging at the Faculty of Medicine at NTNU in Trondheim, but they have often traveled both domestically and overseas to help athletes and teams, in addition to keep their famous lecture “Exercise for life”.