Balance and variety with in season foods so that your diet isn't extreme or lacking.
Measured and informed so that you know what you need, and what you're getting. Measure your staple foods once – it's a bit of effort but then you can write down the results.
Don't blindly believe everything you see on the internet, or everything people say. Read multiple sources, actively seek out differing opinions and use your judgement.
Just trow out use of soda juices and sweets, candys!
Reduce bread and doe input, use rice, red pottato…
And you can preety much continue eating anything else. Plus start taking some vitamins, calcium, magnesium ect..
Thats the best way to not make your body missing of any important ingrediant.