Find quick answers to the most common questions about Calorie Manager. 快速查找关于热量管理助手的常见问题答案。
每日所需热量基于您的基础代谢率（BMR）乘以活动系数计算得出。BMR使用Mifflin-St Jeor公式估算，该公式考虑您的年龄、性别、身高和体重。计算出BMR后，再根据您的活动水平（久坐、轻度、中度、活跃或非常活跃）进行调整，得到您的每日总能量消耗（TDEE）——即维持当前体重所需的热量。
Daily calorie needs are calculated based on your BMR (Basal Metabolic Rate) multiplied by an activity factor. BMR is estimated using the Mifflin-St Jeor equation, which takes into account your age, gender, height, and weight. Once your BMR is computed, it is adjusted by your activity level (sedentary, light, moderate, active, or very active) to determine your TDEE (Total Daily Energy Expenditure) — the number of calories you need to maintain your current weight.
BMR（基础代谢率）是您身体维持基本生命功能（如呼吸、血液循环和细胞生产）所需的热量——即完全休息时消耗的热量。TDEE（每日总能量消耗）是您的BMR乘以活动系数，该系数考虑了全天所有身体活动，包括运动、步行甚至小动作。TDEE是您用于体重管理目标的数字。
BMR (Basal Metabolic Rate) is the number of calories your body needs to perform basic life-sustaining functions like breathing, circulating blood, and cell production — essentially the calories burned at complete rest. TDEE (Total Daily Energy Expenditure) is your BMR multiplied by an activity factor that accounts for all physical activity throughout the day, including exercise, walking, and even fidgeting. TDEE is the number you use for weight management goals.
应用中的食物热量数据基于标准营养数据库（如USDA和常见食物数据库）。实际热量含量可能因制作方法、品牌差异、烹饪技巧和食材天然差异而有所不同。请将这些数值作为一般参考，而非精确测量值。如需精确营养追踪，请查看食物标签或咨询营养师。
Food calorie data in the app is based on standard nutritional databases (such as USDA and common food databases). Actual calorie content may vary due to preparation methods, brand differences, cooking techniques, and natural variation in ingredients. Please use the values as a general reference rather than an exact measurement. For precise nutritional tracking, check food labels or consult a dietitian.
您的所有数据都通过 localStorage 存储在浏览器本地。没有任何数据会传输到或存储在服务器上——您的信息永远不会离开您的设备。这意味着您可以完全掌控您的数据。您可以随时在应用中查看、导出或删除数据。详情请参阅我们的Privacy隐私政策。
All your data is stored locally in your browser using localStorage. No data is transmitted to or stored on any server — your information never leaves your device. This means you have full control over your data. You can view, export, or delete it at any time directly from the app. For more details, see our Privacy Policy.
应用同时支持公制和英制单位系统。您可以选择：
• 公制： 体重用千克（kg），身高用厘米（cm），热量用千卡（kcal）
• 英制： 体重用磅（lbs），身高用英尺/英寸（ft/in）
您可以随时在应用设置中切换系统。您的偏好设置会自动保存。
The app supports both metric and imperial unit systems. You can choose:
• Metric: kilograms (kg) for weight, centimeters (cm) for height, kilocalories (kcal) for energy
• Imperial: pounds (lbs) for weight, feet/inches (ft/in) for height
You can switch between systems at any time in the app settings. Your preference is saved automatically.
应用包含内置的导入导出功能，可从设置菜单访问。您可以导出两种格式的数据：
• JSON： 完整备份，包括您的个人资料、食物记录、运动日志和设置 — 适合完整数据迁移
• CSV： 每日食物和运动日志，以电子表格兼容格式导出，可在Excel、Google Sheets等工具中分析
您也可以导入 JSON 备份来恢复之前导出的数据。
The app includes a built-in import/export feature accessible from the settings menu. You can export your data in two formats:
• JSON: A complete backup including all your profile, food records, exercise logs, and settings — ideal for full data portability
• CSV: Your daily food and exercise logs in a spreadsheet-compatible format for analysis in Excel, Google Sheets, or similar tools
You can also import a JSON backup to restore previously exported data.
无需注册或创建账户。热量管理助手旨在完全私密且无需繁琐操作。由于所有数据都存储在您的设备本地，无需用户账户、电子邮件地址或密码。只需打开应用即可开始追踪。
No registration or account is required. Calorie Manager is designed to be completely private and hassle-free. Since all data is stored locally on your device, there is no need for user accounts, email addresses, or passwords. Simply open the app and start tracking right away.
是的！热量管理助手采用完全响应式设计，可在所有设备上流畅使用——智能手机、平板电脑、笔记本电脑和台式电脑。界面会适应您的屏幕大小，提供最佳体验。只需在移动浏览器中打开网址即可。为获得最佳体验，您还可以将其添加到主屏幕（iOS Safari：分享→添加到主屏幕；Android Chrome：菜单→添加到主屏幕）。
Yes! Calorie Manager is built with a fully responsive design that works seamlessly across all devices — smartphones, tablets, laptops, and desktops. The interface adapts to your screen size for an optimal experience. Simply open the website URL in your mobile browser. For the best experience, you can also add it to your home screen (iOS Safari: Share → Add to Home Screen; Android Chrome: Menu → Add to Home Screen).
应用使用 MET（代谢当量）值计算运动消耗。公式为：消耗热量 = MET × 体重(kg) × 时长(小时)。应用涵盖 3 大类（有氧运动、力量训练、日常活动）共 40+ 种运动，每种运动均有对应的标准 MET 值。您只需选择运动并输入时长，系统会自动计算消耗热量。
The app uses MET (Metabolic Equivalent of Task) values to calculate exercise calorie burn. The formula is: Calories burned = MET × weight (kg) × duration (hours). The app covers 3 categories (aerobic, strength training, daily activities) with 40+ exercises, each with a standard MET value. Simply select an exercise and enter the duration — the system calculates the calories burned automatically.
饮食结构分析会自动将您当天选择的食物按7 大类（蛋白质、蔬菜水果、谷物主食、零食/快餐、饮品、综合料理、自定义）进行分类统计，并判断各类别摄入是否均衡。如果某类摄入不足或过高，系统会给出个性化饮食建议，帮助您调整饮食结构。
Diet Analysis automatically categorizes your selected foods into 7 food groups (protein, veggies & fruit, grains, snacks, beverages, mixed dishes, custom) and evaluates whether your intake is balanced. If any category is too low or too high, the system provides personalized dietary suggestions to help you adjust your diet.
支持！热量管理助手通过 Service Worker 实现离线缓存。首次访问后，应用的静态资源（页面、样式、脚本）会缓存在您的设备上。之后即使没有网络连接，您也可以正常打开应用、查看和编辑数据。将应用添加到主屏幕后，体验如同原生 App。
Yes! Calorie Manager uses a Service Worker for offline caching. After your first visit, the app's static resources (pages, styles, scripts) are cached on your device. You can then open the app, view, and edit data even without an internet connection. Adding it to your home screen gives you a native app-like experience.
有的！以下是可用的快捷键：
• Ctrl + Enter — 计算每日所需热量
• Ctrl + K — 聚焦食物搜索框
• Ctrl + Z — 撤销上一步操作
• Esc — 关闭弹窗和浮层
Yes! Here are the available shortcuts:
• Ctrl + Enter — Calculate daily calorie needs
• Ctrl + K — Focus the food search box
• Ctrl + Z — Undo last action
• Esc — Close modals and overlays