Creator on Reddit

James Fortis

James Fortis is an electrical engineer working in renewable energy who also holds a graduate degree in nutrition. On Reddit he shares charts that compare everyday foods by cost, using Walmart prices alongside USDA nutrient data, made in Microsoft Excel. You will find his comparisons of the cheapest protein sources, adjusted for digestibility, and of calorie density against price.

Topics

Food and Drink Health and Fitness

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Infographics by James Fortis

2 infographics

Scatter chart titled Food's Cost per Gram of Protein vs. Protein Density (Adjusted for Digestibility), plotting 41 foods by grams of protein per 100 g against US dollar cost per 30 g of protein, with legumes such as pinto beans and lentils cheapest and ribeye steak and pork belly off the top of the chart

Food and Drink

Cheapest Protein Sources per Gram, 41 Foods Compared

By James Fortis

Dried pinto beans, split peas, lentils and chickpeas cost about $0.50 or less for 30 g of protein, while ribeye steak costs $5.76.

Scatter chart titled Food's Cost vs. Caloric Density plotting 49 foods coloured by category, from cultivated mushroom at $2.22 per 100 calories to brown rice and lentils under 10 cents, against calories per gram from 0 to 6.5, sources Walmart.com and USDA FoodData Central

Health and Fitness

Calorie Dense Foods vs Low Calorie Foods Comparison by Cost

By James Fortis

At 2024 US prices, brown rice cost about 5 cents per 100 calories and broccoli about 77 cents, because low calorie foods are mostly water.

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