Well, actually,

1) She brought up potatos merely because someone else brought up an argument about potatos. She ate many other things. RTFA.

2) Calories aren't everything. Nutrients matter. Potatos are actually cheaper than rice when you account for all the nutrition. So it would make sense to make potatos a significant part of your diet, while still also mixing in plenty of rice (and, crucially, beans). If you actually ate nothing but rice you would become nutrient deficient and become sick.

Author is a she and also has pics of rice on the page "Another variation on rice with mixed frozen veg, 2013. That measly bowl was lunch and dinner."

I commend you on your excellent example of the point she was trying to make with the potatoes.

Its not about the potatoes. There are several examples of rice meals at the end.

Potatoes are a reference to the quote the article is based upon. Not her suggestion of the best value diet.

Not only calories count. The body needs some amount these calories to come in the form of carbohydrates. Atkins aside, most people cannot live on fats and protein only.

If you read the article, she eats a lot of rice.

Tesco's parmigiano regiano dop costs 3.20 GBP for 200g and has around 1000 calories. So you can take all your daily calories for 7-10 pounds while eating one of the best luxury foods in the world. Eating mozzarella di buffala dop with dash of olive oil is even cheaper. Your math checks out.

If you read the rest of the article you'll see that she ate rice very very often.

> normally rice will give you most bang for your buck and fat rich dairy & oil products.

At the end of the article she has photos from different years. After a few rice meals with frozen vegetables, one of the captions says "Here we go again! My god there’s a reason I barely eat rice any more."

She.

If you’d like to go back and read the rest of the article, too, I think there’s some gems you missed in there.