为什么我每天在健身房拼命训练，肌肉却不见长？

根据运动营养学的研究，超过80%的健身者无法达到预期效果是因为饮食问题。增肌的本质是能量溢出的过程，身体只有在摄入热量大于消耗热量（热量盈余）的情况下，才会将多余的能量用于合成肌肉。如果你练得非常辛苦但吃得不够，身体不仅不会长肌肉，反而可能因为能量不足而变得更加疲惫甚至消瘦。

科学增肌每天应该多吃多少热量？

科学的增肌建议是实现“渐进式盈余”，即每日摄入的热量比你的每日总消耗热量（TDEE）多出300到500大卡，或者增加10%到15%的摄入量。这个范围能最大限度地促进肌肉生长，同时避免因热量过剩过多而导致脂肪大量堆积。

如何计算我每天到底需要吃多少热量？

首先，你需要通过Mifflin-St Jeor公式计算基础代谢率（BMR），即维持生命所需的基本热量。男性公式为：10×体重(kg) + 6.25×身高(cm) - 5×年龄 + 5；女性则为：10×体重(kg) + 6.25×身高(cm) - 5×年龄 - 161。算出BMR后，根据你的运动强度乘以活动系数（如轻微运动为1.375，高强度运动为1.725）得到TDEE，最后在TDEE基础上增加300-500大卡即为你的增肌目标热量。

增肌期间三大营养素应该如何分配？

增肌饮食应围绕“热量盈余加蛋白质充足”展开。建议每公斤体重摄入1.6到2.2克蛋白质以支持肌肉合成；碳水化合物应占总热量的40%到50%，作为训练的能量来源；脂肪则占20%到30%，用于维持激素水平（如睾酮合成）。在实操中，可以采用少量多餐的方法，并在训练前后重点补充易消化的碳水和蛋白质。

我如何判断自己的增肌计划是否有效？

最直观的监控指标是体重的动态变化。在理想状态下，每周增重应控制在0.25到0.5公斤之间。如果每周增重超过0.5公斤，说明热量摄入过多，长的可能大多是脂肪；如果连续两周体重没有变化，则说明未达到热量盈余，需要适当增加进食量。建议每天早晨空腹称重以获得最准确的数据趋势。

如何计算热量盈余？BMR与TDEE增肌营养全攻略

13 min

Apr 20, 2026

Health Self Help Science

很多人练得苦却不见长肉，核心在于没搞懂热量盈余。Lena 和 Eli 将带你精准计算 BMR 与 TDEE，通过每天多摄入 300-500 大卡的黄金法则，让身体科学开启增肌模式。

Best quote from 如何计算热量盈余？BMR与TDEE增肌营养全攻略

增肌不只是练出来的，更是算出来、吃出来的。身体只有在能量有剩余的时候，才会考虑去投资肌肉的合成。

This audio lesson was created by a BeFreed community member

Input question

This lesson is part of the learning plan: '科学增肌营养全攻略：从基础到实战'. Lesson topic: 热量盈余：肌肉生长的先决条件 Overview: 学习如何计算基础代谢率(BMR)与每日总消耗(TDEE)，并设定科学的增肌热量目标。 Key insights to cover in order: 1. 热量盈余原则：每日摄入需比消耗多300-500大卡 2. 使用Mifflin-St Jeor公式精确计算个人TDEE 3. 监测体重变化：每周增重0.25-0.5kg为理想状态

Host voices

Lena

Lena

Learning style

Quick

Knowledge sources

[url_7652972c:c0002] 健身饮食营养全攻略：科学配比三大营养素，增肌减脂效率翻倍 | 锐星健身教练培训基地 p1-1

https://www.rstarfit.com/archives/1178

[url_40b97289:c0000] 健身饮食营养全攻略：训练前后怎么吃？三大营养素比例如何分配？ | 锐星健身教练培训基地 p1-1

https://www.rstarfit.com/archives/1142

[url_6979c823:c0000] 增肌饮食怎么吃 | 百度健康·医学科普 p1-1

https://health.baidu.com/m/detail/ar_5941642211388804448

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这份学习计划为初学者和进阶者提供了系统化的健身指导，涵盖了从训练技术到营养恢复的全方位知识。它不仅关注身体素质的提升，更强调建立科学的思维体系，适合希望通过高效方法重塑体型、提升健康水平的每一个人。

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如何计算热量盈余？BMR与TDEE增肌营养全攻略

13 min

Apr 20, 2026

Health Self Help Science

Best quote from 如何计算热量盈余？BMR与TDEE增肌营养全攻略

增肌不只是练出来的，更是算出来、吃出来的。身体只有在能量有剩余的时候，才会考虑去投资肌肉的合成。

Key Takeaways

别让“练得太苦”毁掉你的肌肉

0:00

0:22

0:50

0:58

1:16

1:30

增肌的本质是一场能量溢出的游戏

1:43

1:57

2:21

2:32

2:50

3:00

算出你的“生命底色”：BMR 是什么

3:27

3:40

4:02

4:04

4:28

4:32

4:48

5:04

从 BMR 到 TDEE：把你的生活方式算进去

5:11

5:19

5:33

5:41

5:59

6:14

6:35

别只盯着热量，三大营养素的配比才是灵魂

6:45

6:52

7:12

7:18

7:45

7:53

8:17

8:30

监测与反馈：体重计不会骗你，但你要会看

8:37

8:47

9:03

9:09

9:32

9:43

9:57

10:13

避坑指南：这些增肌路上的“坑”千万别踩

10:16

10:28

10:49

10:53

11:11

2:32

11:40

总结：从今天开始，精准喂养你的肌肉

11:47

12:06

12:21

12:33

12:47

12:58

13:06

13:16

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This audio lesson was created by a BeFreed community member

Input question

Host voices

Lena

Learning style

Quick

Knowledge sources

https://www.rstarfit.com/archives/1178

https://www.rstarfit.com/archives/1142

https://health.baidu.com/m/detail/ar_5941642211388804448

Frequently Asked Questions

Discover more

男生新手健身教程

LEARNING PLAN

男生新手健身教程

2 h 16 m•4 Sections

如何健身

LEARNING PLAN

如何健身

2 h 55 m•4 Sections

Healthy & Balance nutrition for muscle growth

LEARNING PLAN

Healthy & Balance nutrition for muscle growth

1 h 54 m•4 Sections

Build muscle

LEARNING PLAN

Build muscle

2 h 13 m•4 Sections

我想学习健康饮食和运行

LEARNING PLAN

我想学习健康饮食和运行

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Exercise

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Exercise

3 h 7 m•4 Sections

Fitness

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Optimize Body, Fitness, Health & Recovery

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Optimize Body, Fitness, Health & Recovery

2 h 22 m•4 Sections

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"It is great for me to learn something from the book without reading it."

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"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."

@Leo, Law Student, UPenn

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@Cashflowbubu

From Columbia University alumni built in San Francisco

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@Moemenn

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