Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 10/6/2025

Protein Goal for Women During Weight Loss

  • The American Heart Association recommends that women aiming to lose weight should consume 50-100 grams of protein per day, representing approximately 15-20% of total daily calories, while maintaining a minimum caloric intake of 1200 kcal/day 1, 2
  • The standard RDA for protein is 0.8 g/kg body weight per day, which remains appropriate during weight loss for most women, according to the American Heart Association 4, 5, 6

Caloric Context

  • The American Heart Association suggests that the minimum daily intake should be 1200 kcal/day to ensure nutritional adequacy 1, 2
  • At a caloric level of 1200 kcal, 15% protein equals approximately 45 grams, while 20% equals 60 grams, as recommended by the American Heart Association 1

Macronutrient Balance

  • The American Heart Association recommends that carbohydrates should make up approximately 55% of calories, with a minimum of 100 g/day to ensure nutritional adequacy 1, 2, 3
  • The American Heart Association suggests that fat should make up approximately 30% of calories 1, 2

Special Considerations

  • For women with diabetes, the American Diabetes Association recommends a protein intake of 1.0-1.5 g/kg body weight/day, which is 15-20% of total calories, with no evidence that adjusting beyond this range improves glycemic control 9

Common Pitfalls to Avoid

  • The American Heart Association advises avoiding excessive protein intake (>100 g/day for most women) as it provides no additional weight loss benefit and may increase cardiovascular risk through associated saturated fat and cholesterol intake 1, 7, 8
  • The American Heart Association recommends not severely restricting carbohydrates below 100 g/day, as this compromises nutritional adequacy and long-term sustainability 1, 2, 3

The Bottom Line

  • The American Heart Association states that total energy deficit has the greatest impact on weight reduction, not macronutrient composition, and recommends a balanced approach that includes 50-100 g of protein per day 1, 2

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