So-called advances in food science continue to negatively impact the plant foods available to us putting our health at risk
Earth’s biodiversity is in decline. Be it animals or plants, or the microorganisms in our agricultural soils or guts, the number of species at risk of extinction as a result of human activity grows every day. Globalisation and industrialisation have had other untoward effects as well. One of these is the dramatic change not only to the types of food available to us, but also to the diversity of nutrients found in those foods. Today’s plant foods come with a very different nutrient profile compared with those of our paleolithic ancestors. The same can be said of the farm animals on which many humans continue to rely on as a major component of their protein intake. All of this, while we continue to carry genes that have barely changed from those of our Paleolithic ancestors, must have consequences. As you'll discover here, the consequences of what is referred to scientifically as 'dietary simplification' are enormous. So much so that it likely underpins a significant part of the chronic disease crisis we see today.
We sometimes forget just how remarkable nature is in its effort to find balance within and between organisms in ever changing environments. Food is so much more than just energy in the form of calories. Food isn’t just fuel, it’s literally information that allows us to gain and maintain health. We have evolved alongside our natural foods, benefiting from complex nutrient packages that allow nutrients to work synergistically together so our bodies get the most out of our meals. Through food, we build, repair and maintain our cells, tissues and structures.
Phytochemicals is the term used to describe plant-based nutrients. They remind us that not all chemicals are dangerous! These are the compounds that give fruits and vegetables their colour, flavour (including bitterness) and smell. In the plant, these phytochemicals defend against disease, attack by insects and microbes, as well as environmental stressors such as ultra-violet light, cold, heat, lack of water, poor soil quality and pollution. Different plants have developed specific phytonutrients for particular defensive needs e.g. resveratrol in grapes and berries to protect against fungal infection, stress and UV light. In us, these phytochemicals provide essential protection against diseases e.g. cancer, neurodegeneration, diabetes and cardiovascular disease to name a few (see table 2 for references). The more we reduce the diversity of foods we eat, breed plants and raise animals to increase corporate profits, pander to our sweet tooth and declining palates e.g. sweeter fruits and vegetables, highly processed foods and high-yield crops — the more we remove the very nutrients our body has evolved with to keep it healthy and disease-free.
A diverse agro-ecosystem in Kitale, Kenya. The proper place to produce nutrient-dense
foods that promote health and reduce disease risk. A far cry from a factory farm or monoculture.
Our entire planet has evolved using diversity to stay healthy and in balance. Just look at the diversity in a rainforest or a coral reef and you’ll understand that our bodies, and our environment, are mirror images. We need layers of diversity to maintain stability within living systems, to stop one species taking over to the detriment of another, be they human, animal, plant or microbial.
Below is a brand new infographic we've created to bring some key facts and figures alive.
Click on the images below to download the full PDF and find out the latest on dietary simplification and the loss of diversity crisis we're facing.
‘Eat a Rainbow’ by making sure you cover the phytonutrient spectrum which includes all 6 colours every day to maximise your health benefits.
Start growing your own and use heirloom/heritage seed varieties wherever possible. You can still grow herbs and veggies in pots, growbags and troughs on patios and windowsills if space is an issue.
Buy from organic box (CSA) schemes, which are delivered to your door and are often much cheaper than supermarket produce. Deliberately choose veg you’ve not seen or cooked before to increase the number of plant foods you eat. There are a wealth of recipe ideas on the net!
See table 2 for examples of phytochemical disease risk reduction relationships
Carotenoids (such as beta-carotene, lycopene, lutein, zeaxanthin)
Orange, Yellow, Red
Red, orange and green fruits and vegetables including broccoli, carrots, cooked tomatoes, leafy greens, sweet potatoes, winter squash, apricots, cantaloupe, oranges and watermelon
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