Eat a Rainbow Diet

If I told you that eating one apple, one onion, one orange, a handful of spinach, a grilled tomato, a small green salad, a few florets of broccoli and a bowl of mixed berries every day would ensure you live to a healthy 100 years old avoiding cancer, heart disease and a host of degenerative diseases along the way, would you believe me? And, more importantly would you do it?

It was originally thought that it was only the vitamin and mineral content of fruits and vegetables, along with the all-important fiber, that provided extensive health benefits. But these are exciting times in the fruit and vegetable research world and the focus is swinging big time to the importance of their protective phytochemical compounds. There are literally tens of thousands of these little gems present in the plant kingdom and by unlocking their antioxidant, anti-inflammatory, anti-bacterial and immune-boosting properties, daily discoveries are being made about their health-enhancing greatness.

FACT: A diet rich in fruits and vegetables is our best bet for delaying/preventing virtually every chronic disease. This has been established time and again by scientific study. The evidence is so strong that it has been endorsed by UK and US government health agencies, the WHO (World Health Organization) and virtually every major medical organization.

Unless you have been living on another planet, it is hard to claim ignorance of the 5-a-Day recommendation and yet the daily average in the UK wobbles somewhere around 2.7 portions for women, 2.5 portions for men and a mere ONE A DAY for teenagers! It’s all doom and gloom from a health point of view!

But, why was the number “5” selected as the UK goal when the Australian government recommends 7, Greece 9 and the National Cancer Institute (U.S.) says the minimum should be 5 for children, 7 for women and 9 for men? The French have gone one better and recommended 10. It appears to be something to do with us being such poor fruit and vegetable eaters that 5 was deemed achievable. Sadly, even 5 seem to be a step too far. So why are they so hateful, why do we resist them? They come in every color of the rainbow and if we removed them from the supermarket shelves it would be a bleak place. Many of them can be enjoyed raw or cooked, they are as easily transported as a packet of crisps and the variety of dishes we can concoct with them is virtually limitless.
Enter Phytochemicals

What exactly are they? They are a plant’s security blanket and when consumed in our diet, offer the same security and protection. The content, concentration and distribution of phytochemicals in any plant depend upon the species, the soil in which it grows, climatic conditions, degree of ripeness and its cultivation and storage. But why is color so important? Many of these versatile phytochemical compounds are concentrated in the leaves, the skin and peel and their bright colors attract insects and birds for pollination and seed dispersal, which is vital for continuation of the plant species. They are also concentrated in the core of the plant, in the pips and seeds to protect their precious genetic material, their DNA. All too often peel and pips are discarded during industrial processing resulting in a vastly reduced dose. So, wherever possible, wash/scrub your fruits and vegetables and enjoy them as nature intended – fresh, raw or lightly cooked.

1 + 1 + 1 + 1 + 1 Does Not Always Equal 5

It is impossible to cover all the properties and the perceived health benefits of the vast number of these phyto ‘giants’ currently hitting the headlines of numerous research studies, but one thing is becoming crystal clear. The broader the range, the greater the protection. While certain fruits and vegetables have benefited from more research and media than others (broccoli, blueberries, pomegranates to name three) there is no singular super food that is going to bring about super health. The body demands a balance of ‘macro’ nutrients in the form of carbohydrates, proteins and fats, a balance of ‘micro’ nutrients in the form of vitamins and minerals and a balance of ‘accessory’ nutrients in the form of phytochemicals etc. in order to energize, repair and regenerate. Having 5 pints of blueberries every day won’t provide the balance. Variety is the key.

Here are some things to look out for. Don’t let the science confuse you, just pack as many of them in whenever you can: carotenoids, flavonoids, polyphenols, lycopene, quercetin, reseveratrol, and allicin… Think of them as a fabulous and health-enhancing injection of color into your life!

Orange Fruits + Vegetables

Apricots, cantaloupe, melon, mango, nectarines, oranges, papaya, peaches, tangerines, butternut squash, carrots, pumpkin, sweet potatoes.

Rich in phytochemicals known as carotenoids. A number of studies have found higher blood levels of these carotenoids to be associated with significantly reduced thickening of the arteries leading to an increased risk of cardiovascular disease.

Red Fruits + Vegetables

Red apples, blood oranges, cherries, cranberries, red grapes, pink grapefruit, red pears, pomegranate, raspberries, strawberries, watermelon, red beets, red peppers, red cabbage, radishes, red onions, red potatoes, rhubarb, tomatoes.

This group contains phytochemicals such as lycopene and anthocyanins and may maintain heart health, memory, and urinary function and reduce cancer risks. The results of studies suggest that lycopene-rich diets are associated with significant reductions in the risk of prostate cancer. Heating tomatoes in oil has been shown to increase its effectiveness. Ellagic acid, which is present in many red fruits and berries, particularly raspberries have antioxidant and anti-cancer properties. Studies have also shown the anti-cancer activity on cancer cells in the breast, esophagus, skin, colon and pancreas.

Yellow Fruits + Vegetables

Lemons, yellow pears, pineapple, yellow peppers, corn, summer and winter squash, yellow tomatoes, yellow apples, turnips.

This group contains antioxidants, vitamin C, carotenoids, and bioflavonoids and may reduce the risks of cancer, increase heart health, vision and immunity. Beta-carotene is a yellow pigment naturally occurring in fruits and vegetables. In plants, it acts as an antioxidant and neutralizes damaging free radicals. Cooking improves the availability of carotenoids in foods. But be aware they have higher sugar content!

Green Fruits + Vegetable

Lettuce, watercress, courgettes (zucchini), green beans, green peppers, avocado, green apples, honeydew melon, kiwi, limes, pears, artichokes, asparagus, spinach, sugar snap peas, broccoli, Brussel Sprouts, cabbage, celery, cucumber, peas.

Lutein and zeaxanthin are by far the most researched phytochemicals in this group. By preventing a substantial amount of the blue light entering the eye from reaching underlying structures involved in vision, these phytochemicals may protect our eyes from light-induced oxidative damage, which is thought to play a role in age-related macular degeneration. The available scientific evidence suggests that consuming at least 6mg per day may decrease the risk.

Greenish/White Fruits + Vegetables

Bananas, dates, white peaches, cauliflower, chives, fennel, garlic, ginger, spring onions, Jerusalem artichokes, leeks, mushrooms, onions, parsnip, potatoes, shallots.

This group contains phytochemicals such as allicin, found in the garlic and onion family and quercetin, which is particularly rich in apples, onions, cauliflower and cabbage. These may reduce the risks of heart problems and cancer, help maintain a healthy level of blood cholesterol and help control blood pressure. Quercetin also inhibits the release of histamine, which causes congestion and studies have also shown an improved lung function and lower risk of certain respiratory diseases (asthma and bronchitis) for people with high quercetin intake. Recent studies have also shown a reduction in the cancer risk of prostate, ovary, breast, gastric and colon cells.

Blue/Indigo/Violet Fruits + Vegetables

Blackberries, blueberries, blackcurrants, figs, purple grapes, plums, prunes, raisins, purple broccoli, eggplant, purple potatoes.

Rich in a class of phytochemicals best known as flavonoids, which has been the subject of extensive research. Flavonoids protect plants from oxidative damage and perform the same function for humans. The colors blue, purple and violet seen in berries, grapes and eggplants are due to their phenolic content. The outstanding feature of phenols is their ability to block specific enzymes that cause inflammation. This anti-inflammatory action may reduce cancer risks and help to maintain urinary tract health and memory function. Resveratrol, found in grapes, grape juice, wine, blueberries, bilberries and cranberries has received a great deal of attention for its French Paradox connection. In essence, it appears that although the French eat a diet relatively high in saturated fat, they show much-reduced rates of coronary heart disease when compared with northern European nations. The most popular explanation, backed by numerous ongoing studies is that their relatively high consumption of red wine offers some protection.
Getting Phytochemicals Into Your Daily Diet

  • Make sure your shopping basket is full of color
  • Juice a couple of times every day – it takes a matter of minutes
  • Steam a bag of mixed vegetables, drizzle with olive oil and lemon juice and eat while you are preparing supper
    Fill at least half your plate with salad/vegetables, then serve the remainder of your meal
  • Keep fruit and raw baby vegetables in your handbag/briefcase to snack on every couple of hours
  • Keep a fruit bowl where you can see it and regularly refill
  • Always have a pot of vegetable soup simmering and make it as colorful as possible
  • Experiment with cooking methods for both fruits and vegetables – steam, grill, bake, roast, kebab, puree (the internet is bursting with suggestions)

And try this! ?There are 7 days in every week! Use the lists above, go for a different color every day for a week and chart how many ways you can get that color into your diet each day AND experiment with fruits and vegetables you may be unfamiliar with. Chop them, shred them, grate them, juice them, puree them, mash them, add them to soups, stews, stir fries, pasta, rice, stuff them in wraps and pita pockets, dip them in oils and salsas and ENJOY!

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