What's the Cheapest and Healthiest Protein Source Actually
In a Nutshell
Whole eggs are the cheapest protein source at 2¢ per gram, while chunk light tuna delivers the highest protein density at 23.6g per 100 calories. Chicken breast and whey protein tie for best value among lean options at 3–3.9¢ per gram, making them ideal for calorie-restricted diets.
These notes were generated by AI and may contain inaccuracies.
Determining the cheapest and healthiest protein source requires analyzing multiple variables beyond simple price comparison. The key metrics include total food weight, protein content percentage, calories per serving, packaging size, and other factors that affect value calculation. The analysis requires comparing gram-for-gram and pound-for-pound adjusted costs across different protein sources.
The following 12 protein sources were purchased from Aldi and Costco for comparison:
- Whole eggs
- Frozen chicken breast
- Boneless chicken thighs
- Chunk light tuna
- Non-fat Greek yogurt
- Cottage cheese
- Whole chicken
- Canned chicken breast
- Whey protein powder (Gold Standard Optimum Nutrition)
- Liquid egg whites
- Fat-free milk
- Extra firm tofu
At Aldi, fresh chicken breast cost 14 cents per ounce, beating frozen chicken breast options at 19 and 18 cents per ounce respectively. The regular fresh chicken breast was selected over frozen alternatives based on price.
Ranking from most expensive to cheapest:
Canned chicken breast ranked last at 5.7 cents per gram of protein. The higher cost results from pre-preparation processing, requiring payment for cooking labor. Despite the cost, canned chicken offers long shelf life suitable for emergency storage and travel.
Boneless, skinless chicken thighs tied at 3.9 cents per gram of protein. Chicken thighs contain approximately 4-5 grams of fat per 20 grams of protein compared to 2-3 grams in chicken breast, making them only marginally higher in fat content.
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