Hello!
The topic of what foods we should eat is a very broad subject. The kinds of foods we should eat depends on our health issues and what we are trying to heal and our intolerances, and so fourth.
This post can be long one as there are so many variables.
A rule of thumb is..
Stay away from Veganism and Vegetarianism. This is very harmful. One member posted here about Vegetariansm and Veganism dangers. Check out the link and articles.
Include as many kinds of food as you can such as meat, dairy, fruits and veggies and starches. Balance is key. Organic dairy and Yogurt are very helpful.
Grass fed organic animal products and meats are recommended.
Pertaining to your question about Energy and the Aura, try to eat living foods such as kombucha, kefir, yogurt, raw Milk, if you have access, and fresh fruits. Eating in season helps too. I will write a post on Foods and Prana and eating in season soon! So look out. This will also relate to our energy levels.
Drinking clean water helps the body and our bioelectricity as many chemical processes in our body need water. Water is also a conductor to our bioelectricity
Stay hydrated.
For a clean healthy aura, we must take care of our bodies and vice versa. A clean heathy aura keeps for a healthy body too. But there are times when we are new and don't have enough of the raw power for healing to automatically manifest. So, eat healthy and if you are having energy level problems, use energy from the sun. The sure mantra works and breathing in energy from the sun into your aura will keep it strong and vibrant.
Healthy organic fresh foods are what you need.
I don't know you and so I don't know if you have any health matters or issues that may need healing or may be impeding your energy levels.
I leave this also open to other new members to add.