I've tried this but I don't think it really works, it forms sodium citrate which tastes sour. Maybe not as pronounced as the citric acid in tomato sauce, but yo

I've tried this but I don't think it really works, it forms sodium citrate which tastes sour. Maybe not as pronounced as the citric acid in tomato sauce, but you still need sugar to balance it out. It's also an emulsifier so it can change the texture of the sauce. A lot of tomato based sauces are just very sweet. If you're worried about the sugar intake eat less of it.