Why does the Harvard pyramid for healthy eating differ from the USDA diet pyramid?

Why does the Harvard pyramid for healthy eating differ from the USDA diet pyramid?
I wonder if you knew that Harvard has released her own pyramid for healthy eating because they did not support the USDA nutritional pyramid?
Harvard's thoughts about the pyramid of the USDA and her successor My Pyramid were: "Her blueprint was based on shaky scientific evidence and she has not noticed noticeably over the years in order to reflect great progress in our understanding of nutrition and health." I do not know how they are, but I am both fascinated and upset when something that is advertised as well as well for them is moved into such a questionable ramp light and nothing, zero, zip, nada is apparently undertaken.
So I have researched and researched a little in recent years and believe that I have something to offer to transform the confusion into clarity and show the way where, in my opinion, the nutritional pyramid could lead in the future.
Why is it important to you? Because when I studied medicine, 20 to 30 years passed between the discovery of a new idea and its appearance in textbooks. Can you imagine what 20-30 years of impressive nutrition can do with you? It could literally be the difference between life and death. Your! So if you haven't really paid attention before, I hope you have woken up to want to know more. Could it really take 20-30 years for the USDA to change his opinion? I can imagine that it will take even longer, because like Harvard, a change is unlikely because it comes from the US Ministry of Agriculture, which is responsible for promoting American agriculture and not necessarily for health.
The implication is that lobbying focuses on keeping American agriculture healthy at the expense of your personal health. Why am I saying that? Because we are all conditioned from school to accept the USDA pyramid and work with it. This conditioning can create a lot of inertia from which it is difficult to break out, but it is possible. It begins with the fact that they expose themselves to other thoughts of people who have their health in mind.
as an alternative to what Harvard called "The faulty pyramid of the USDA", William C. Willett MD and other members of the Harvard School of Public Health have built up the pyramid for healthy eating. This is a research -based pyramid. It is a pyramid you should pay attention to. It starts with a basis from movement, portion control and weight control because you know that apart from whether you smoke, the number you start from the bathroom scale is the most important indicator for your future health.
The other main differences we see are that the next layer, i.e. the first food layer, fruit and vegetables, healthy oils and fats as well as cereals. Note that fruits and vegetables are working further down into the pyramid because the amount of grain decreases and healthy fats from the tip of the USDA pyramid are hiked into the main layer of the Harvard pyramid.
The next layer is the protein layer for meat eaters and vegetarians. And beyond that are milk or calcium preparations. In addition to calcium preparations, Harvard also recommends a multivitamin. This is a break with the concept that you should be able to obtain all your nutrients from the food you eat. Here you can get to the Harvard pyramid: www.hsph.harvard.edu/nutritionsource/index.html
But is that the best thing you can do for yourself? Even Harvard openly indicates " Pyramid for healthy eating will change to reflect important new findings."
We have to understand that, although we can fly a person to the moon and back, we are still in a large learning curve about healthy eating. The exciting thing for me is that we are closer to the real understanding than ever. There was a lot of research and there are some very clear indications of how the Harvard pyramid for healthy eating could be improved.
From there, it is up to you. One of the best tools that can help you on this trip is your own body spirit. As you use it, make sure you feel like you eat and eat after eating. If you eat properly, your energy level remains stable and balanced. This is how it can be live well.