I dont even understand the 20 year comment has to do with anything. Do you only see doctors that are younger than you? What about mechanics? Anyway my wife works with a registered dietician who's all of 5 years older than me. And she would tell you the same thing, a balanced diet.
Just saying x is bad for you is reductionist and incorrect. Alcohol isn't bad for you as long as you don't drink to excess every day. A beer or glass of wine a couple times a week isn't going to make you fat or kill your liver. Sugar isn't bad for you as long as your not gorging yourself on it every day. Fruit isn't bad etc. This isn't that hard. It all varies if you exercise a lot, guess what you can eat more sugary things or other "unhealthy" foods. Portion sizes and stupid fad diets are the major problems with how Americans eat and are over weight.
I'm tired and upset and working tomorrow and haven't been doing as well on my diet as I'd like this half of the week. It was reductionist. I'm down 40lbs though on diet so far (again) at least. Calorie restriction -> low carb to get past plateau -> higher protein and calorie cutting again
The 20 years comment was more a frustration at what was being taught in the course I took only a few years ago and many people don't update their knowledge. Just because someone is a registered dietitian (I'm aware 'nutritionist' is meaningless and not what you are talking about) doesn't mean they should be not vetted. That said I did go one one before, but he is a very prominent advocate of the low-carb diet.
I don't think the comment though is as 'right' as it is. Why are people able to eat such large portion sizes for example? Why are young kids (6-24 months) obese? Why is it not America, but pretty much every single other country creeping up overweight %? Look at the statistics for Mexico and explain why they MORE OBESE than America. Why is 70% of Delhi obese? Why do these people 'choose' to keep being obese and having horrible quality of life? Why would anyone? Where are the fad-diets coming from, who is behind them, what is the science. How much fad diet is a thing when orange juice and yogurt are billed as healthy non fat items? etc.
Shifting the targets and understanding away from the individual is important because there are huge factors at play. Of course even with all that said and videoes watched I deeply believe a vast majority of my weight is on me, but understanding the energy process and why certain macro factors cause widespread weight gain or behavioral patterns is incredibly important.
Joe Six Pack got it all figured out.
Goddamn lazy fat ass Americans, amirite? Need to get off that couch and learn themselves some moderation!
Read what he wrote and take your low-carb zealotry elsewhere and talk on the points he makes, not his tag.