Ingredient guide · Ingredient reference

Magnesium in beef: cut and preparation change the estimate

Selected cooked 90%-lean ground-beef records contain roughly 21–27 mg magnesium per 100 g. That range does not describe every cut or dish.

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Supplement Science Insights Editorial Team

Published September 23, 2026

The amounts in the reference foods

USDA’s final SR Legacy 2018 release reports ground beef patty,90% lean, pan-broiled: 23 mg per 100 g; ground beef crumbles,90% lean, pan-browned: 27 mg per 100 g; ground beef loaf,90% lean, baked: 21 mg per 100 g. These are named historical reference foods, not measurements of a current package or meal. [1]

What changes the interpretation

These entries describe different cooked preparations of 90%-lean ground beef. They are not paired measurements proving that one cooking method always retains more magnesium. Raw meat, steak and a mixed meatloaf recipe can require other records. The concentration does not by itself establish how much a person absorbs or whether a supplement is needed. [1]

A hypothetical portion comparison

For three hypothetical 85 g edible cooked portions, the estimates are 19.55 mg for the patty,22.95 mg for the crumbles and 17.85 mg for the loaf. Keep the food description with the number when comparing a food log. The table uses the explicitly chosen edible weights. Scale a matching per-100-g value by the grams eaten divided by 100; a count of pieces or an unspecified spoonful is not the same denominator. [1]

Hypothetical example — compare the chosen edible portions with the original food descriptions
FoodChosen portionNutrient estimate
Ground beef patty,90% lean, pan-broiled85 g19.55 mg
Ground beef crumbles,90% lean, pan-browned85 g22.95 mg
Ground beef loaf,90% lean, baked85 g17.85 mg
Magnesium in beef: cut and preparation change the estimate — original article outline diagram
Original editorial diagram of this article’s sections; no product photograph or clinical finding is depicted.

Sources for this article

  1. USDA FoodData Central — SR Legacy April 2018 composition and portion tables
    Source consulted: 2026-09-20. This is a reference resource, not a claim that we conducted the studies or tested a product.