I'll be honest, I'm not a fan of these diets - there is no need for these 'radical' approaches, when sensible eating achieves the same goals, perhaps in a longer time, but in a more sustained way. This approach, of restricting foods and having to take supplements is a disaster. There is no basis for it, and the supplements are all unnecessary as well - they are never tested, and so there is NO evidence that they work and NO evidence that they are safe. I think that the money spent on these things is better spent on seeing a dietician and receiving a comprehensive eating plan.
The idea that you HAVE to avoid certain foods is incorrect - everything in moderation is the key. Not excessive sushi, obviously, but not none either. You need to see a dietician about it. And one last thing, is that the USN guys themselves are the last people from whom advice should be taken, because they have a massive conflict in interests - their objective is to sell product, so you have to be careful about where advice comes from.
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