One extra little detail is what your food was exposed to in terms of chemicals, toxins, or manipulation during or after production (such as irradiation or genetic modification, and how foods are cooked) which can make all the difference between a food that is healthy and a similar food that is damaging to your health.
One such suggestion I like to make is to avoid your food being exposed to toxic chemicals, such as herbicides, pesticides, fungicides etc. One of the most prominent and dangerous herbicides used on food crops is Roundup (also known as glyphosate, and found in many other brands of herbicides). Even though Roundup is promoted as safe (by its manufacturer, Monsanto), it can cause severe adverse health effects as found in recent research, including birth defects, spontaneous abortions, infertility, hormone disruptions, autoimmune conditions, neuro-degenerative diseases and even cancer (especially Non-Hodgkins lymphoma). It also gets into the environment, animals and the water supply, causing more issues.
Many food crops are genetically modified to be "Roundup Ready", meaning that the crop can be sprayed with Roundup when it's still young to kill the weeds around them, but the young plants can survive being sprayed. Such Roundup Ready crops include wheat, corn, canola, soy, and even cotton.
Roundup is also sprayed on cereal crops (ie wheat and corn), to kill the plants once their grains/seeds have set, to make it easier to harvest them. Unfortunately this leads to the chemical being present in your foods - breakfast cereals, breads, bakery products, soy foods and canola oil. This is one reason why I do not recommend people to eat wheat, corn, soy, or any processed foods with canola oil - unless it has been tested and certified as "organic".
A judge and jury in the USA have just awarded a 46-year old man about $289 MILLION in damages after successfully proving that Roundup caused his cancer. He was a gardener/groundsman and used Roundup regularly, but he isn't expected to live much longer because of his cancer. There are many hundreds more people suing Monsanto for health issues caused by Roundup.
Avoid using Roundup in your gardens or around food crops, as it can be absorbed through your skin to have the same effect. Have a look online for safe, natural herbicides or pesticides that you can cheaply and easily make at home, or just pull your weeds out by hand!
Local councils around Australia are notorious for using Roundup around the streets and parks, but some are heeding the warnings of Roundup and are trialling using steam as a more environmentally friendly and safer alternative to killing weeds! And of course it will be much safer for their employees and the general public too.
For your health and that of your family, please avoid using Roundup in your garden, and avoid Roundup Ready GMO foods.