This might be complicated but could be a gold mine for someone who built it because large stores would pay for it. I found a company that does this for only food products their site is pinto.co ... But I was thinking more general than only food. Source: almost 3 years ago

Plug your stats into this site. Eat around that number (your TDEE) to maintain weight. Eat less than that number to lose weight. Eat more than that number to gain weight. It’s not exact though, it’s a rough estimate. If you’re eating 2500 a day and maintaining, you’ll have to eat more to gain. Don’t overthink it. Source: 6 months ago

Actually yes! Your effort is on the right path. First check find your maintenance calories using a calculator and then eat 200-500 calories under it. Low impact cardio can help you lose weight as effectively as high impact cardio. Set yourself a goal of walking at 7k steps a day until you reach the goal of 10k steps a day. Do that everyday while also eating a calorie deficient and with time your body will be lean.... Source: 6 months ago

Check your nutrition requirements on https://tdeecalculator.net/. Source: 6 months ago

According to this calculator https://tdeecalculator.net/, you would need to eat around 2388-2692 to maintain your weight (this is with "light" or "moderate" activity selected). Source: 6 months ago

Calculate your tdee, can do that here https://tdeecalculator.net/. Source: 6 months ago