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5 food guides · USDA nutrition

Protein food guides: nutrition and portions

Compare eggs, firm tofu, chicken breast, salmon and tempeh by protein, energy and preparation. Calculate nutrition for your own portion from USDA records.

The preparation matters: these records mix cooked meat, fish, eggs and tempeh with raw firm tofu. Match the weight to the specific preparation before comparing portions.

Nutrition per 100 g of the specified preparation. This is not a low-FODMAP food list; no food-specific FODMAP rating or tested serving is shown.
Food and preparationEnergyProteinFibre
Chicken breast

Roasted chicken breast, meat only

165 kcal31.0 g0.0 g
Eggs

Whole hard-boiled egg

155 kcal12.6 g0.0 g
Firm tofu

Raw firm tofu, calcium-set

144 kcal17.3 g2.3 g
Salmon

Pink salmon, cooked with dry heat

153 kcal24.6 g0.0 g
Tempeh

Cooked tempeh

195 kcal19.9 gNot reported

How to use this list

Open an individual food to see its preparation, source record and portion calculator. These foods are not rated for FODMAP content; inclusion in the table does not mean a food is low FODMAP or suitable for your diet.

The low FODMAP approach includes reintroduction and personalisation. Keep a record of meals and symptoms to help identify your own pattern.

Read the food and symptom tracking guide

Sources and scope

Nutrition comes from specific USDA FoodData Central records held in Bornly's database. NIDDK provides general background on diet and IBS. Neither the table nor the gram calculator establishes a tested FODMAP serving limit.