3 ms·

Potatoes[0]: £0.36/770kcal[1] Rice[2]: £0.45/3650kcal[3] Pasta[4]: £0.46/3710kcal[5] Normalized to rice: Potatoes: 3.79 rice_cost_units/kcal Rice: 1.00 ric

by mrob 4y ago

Potatoes[0]: £0.36/770kcal[1] Rice[2]: £0.45/3650kcal[3] Pasta[4]: £0.46/3710kcal[5] Normalized to rice: Potatoes: 3.79 rice_cost_units/kcal Rice: 1.00 rice_cost_units/kcal Pasta: 1.01 rice_cost_units/kcal Tesco does not list calories for potatoes, and for the dry foods only provides calories for the cooked result, so I used values from the USDA nutrient database. The value for potatoes is optimistic, because the cheap potatoes are "imperfect", which suggests there will be significant loss from trimming inedible parts. Assuming efficient technique (pre-soaking dry foods, chopping potatoes small, reducing heat input to minimum once at temperature, covering cooking pots, using insulated pots if possible), cooking cost will probably be similar for all three, although pasta can be eaten "al dente" (undercooked), which might let it beat rice for total cost. [0] https://www.tesco.com/groceries/en-GB/products/292332517 https://www.tesco.com/groceries/en-GB/products/292332517 [1] https://fdc.nal.usda.gov/fdc-app.html#/food-details/170026/nutrients https://fdc.nal.usda.gov/fdc-app.html#/food-details/170026/n... [2] https://www.tesco.com/groceries/en-GB/products/300843799 https://www.tesco.com/groceries/en-GB/products/300843799 [3] https://fdc.nal.usda.gov/fdc-app.html#/food-details/169756/nutrients https://fdc.nal.usda.gov/fdc-app.html#/food-details/169756/n... [4] https://www.tesco.com/groceries/en-GB/products/297844134 https://www.tesco.com/groceries/en-GB/products/297844134 [5] https://fdc.nal.usda.gov/fdc-app.html#/food-details/168927/nutrients https://fdc.nal.usda.gov/fdc-app.html#/food-details/168927/n...

s-lambert 4y ago
Rice has a satiety index of 138 while potatoes have a satiety index of 323, almost 3 times as much. So you need to eat way less potatoes compared to rice, I don't know if it's a linear scale though but still probably brings potatoes pretty close to rice.
- mrob 4y ago
  Satiety index affects how much you want to eat, not how much you need to eat.
  - s-lambert 4y ago
    But the point of this diet is that potatoes have a very high satiety so that even if you eat as much you possibly want to you won't eat enough to put on weight. Rice, with its lower satiety, is much easier to overeat (or eat enough to maintain a higher weight).

by mrob 4y ago

s-lambert 4y ago

Rice has a satiety index of 138 while potatoes have a satiety index of 323, almost 3 times as much. So you need to eat way less potatoes compared to rice, I don't know if it's a linear scale though but still probably brings potatoes pretty close to rice.

mrob 4y ago
Satiety index affects how much you want to eat, not how much you need to eat.
- s-lambert 4y ago
  But the point of this diet is that potatoes have a very high satiety so that even if you eat as much you possibly want to you won't eat enough to put on weight. Rice, with its lower satiety, is much easier to overeat (or eat enough to maintain a higher weight).