I notice that in the current "Mens Health", they have an article about a "new" diet called TNT. Which seems, basically, to consist of low carbs, except for carbs immediately before or after intense exercise, and, for people who are not too overweight, one or two higher carb "refuelling" days a week. The overweight have to eat low carb all the time except for 30 mins before and after intense exercise.
There's an interesting note added to the description of the low carb regime, though. It says you can eat butter and cream "because latest research shows that saturated fats don't cause heart disease if you're eating a low-carb diet". I thought it was interesting that they can drop that in. That's exactly what Atkins said, and he got reviled by all nutritionists and a government campaign. We were all told that Atkins was evil and would give us all heart disease. Now apparently Mens Health can simply say it without comment. I think it would have been polite to include an apology to him, but I guess he's a non-person now and can't be mentioned.
I have no idea what this "latest research" is. I may try writing to Mens Health, but don't hold your breath.
By and large, I'd say: never take health advice from the government.