タンパク質必要量計算ツール
Calculate the ideal daily protein intake for fat loss, muscle gain, or maintenance based on your weight, activity, and training goals.
Calculating Daily Protein Requirements
Protein is the primary macronutrient responsible for repairing tissues, building skeletal muscle, and producing hormones. Consuming adequate protein is essential during a weight loss phase because it protects your active muscle tissue from being broken down for energy.
Dietary protein is also highly satiating. It has a high thermic effect of food (TEF), meaning your body burns roughly 20-30% of the calories consumed from protein just to digest and process it, compared to only 5-15% for carbs and fats.
Sedentary adults require a minimum of 0.8 grams of protein per kilogram of body weight. However, active individuals, lifters, and those in a calorie deficit should consume 1.6 to 2.2 grams of protein per kilogram (0.7 to 1.0 gram per pound) to optimize muscle preservation.
Frequently Asked Questions
Q: How much protein do I need to build muscle?
Aim for 0.7 to 1.0 gram of protein per pound of body weight (1.6 to 2.2 grams per kg) daily, combined with progressive resistance training.
Q: Can you eat too much protein?
For healthy individuals, high protein intake is safe. Excess protein is processed by the kidneys and used for energy or stored.
医学監修: Dr. レカ・クマール(M.D., M.S./チーフ・メディカルレビューア) · 最終確認: September 2026 · 更新日: 2026-09-15
根拠・参考文献
本ツールは情報提供のみを目的とし、専門医の助言に代わるものではありません。
よくある質問
この計算ツールは無料ですか?
はい。Weight Loss Percentage のすべての計算ツールは無料で、登録やアカウントは不要です。
結果はどのくらい正確ですか?
結果は入力値の正確さと、国の保健当局の指針に基づく公開された計算式に左右されます。単一の数値ではなく数週間の傾向を見て判断してください。
どのくらいの頻度で使うべきですか?
体重・活動量・目標が変わったタイミングで確認してください。一般的には週1回で十分な傾向がつかめます。
このサイトの内容は誰が監修していますか?
医療・栄養に関するコンテンツはすべてチーフ・メディカルレビューアの Dr. レカ・クマール(M.D., M.S.)が執筆・監修し、CDCやNIHなど米連邦保健機関の情報を引用しています。