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Comment by callalex | Hacker News Reader

This starts from a fundamental assumption that one person shops exclusively for only their own food. The vast majority of grocery shopping is done for a group of people (a couple, or a family). Those people aren’t eating an exact 50% even split of every item purchased.

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This is a real problem. The good news is that if its not healthy for an individual, its not healthy for their family. A diet comprised of no fiber, no protein and high added sugar is always unhealthy. Families tend to eat similarly. Its very rare to have someone eat well and someone to eat unhealthily.

It also excludes going out to eat. That being said, if someone is concerned about their health enough to use an app like this, they SHOULD be eating at home more. They only way to know what is in your food is to make it yourself.

In Germany round about 41% of people live alone. It's also easier to build. OTOT you probably also don't have a lot of families that optimize for these things, while single people do. I see a lot of good reasons to build this for single people first.

No need to be so negative about something that apparently doesn't apply to you.

There’s a “How many people do you shop for” button.

Yes but that assumes that you eat the exact same ratio and quantity as your 4 year old child, for example.

Sometimes it feels like my 4 year old eats more than me. The ratios are definitely different though.

That is an example. Correct. What’s the issue?

It isn’t telling you how many calories you consumed. It’s just insights into the nutrition from the food you consume.

And that's key. Calories are important, but most people will naturally eat less calories as they shift from carbs+sugar to foods with higher protein and fiber content.

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