Human Nutrition
I am not a qualified human nutritionist but through researching this issue with regard to my own health there are a number of general points and tips that might prove useful.
Nutrient Levels in Food
Firstly, although Organic food is usually produced to a higher standard it has limitations. It takes less than 5 years for a non-organic farm to switch to being classified as organic and whilst I encourage this it tends to guarantee the minimum usage of chemicals in food production more than a higher level of nutrient ingredients. Of course for farms who have been Organic for much longer this is hopefully more nutritious too.
So why is our food often nutritionally inferior? Well most commercial farming fertilizers are based on adding Nitrogen, Phosphorus and Potassium which is where the N:P:K ratio displayed on fertilizer bags comes from. We all know there are many more nutrients required for good health and whilst farmers with stock animals go muck-spreading, if their stock animals' diet is somewhat lacking then it can't go into the muck. As was said as early as the 1930s in the USA " Never have we been so well fed but so under-nourished". A typical example of this that I recently came across is the comparative levels of Iron in spinach now compared to the days when the Popeye cartoon character was created to encourage children to eat spinach when the Iron levels made it rather unpalatable.
Personally and unfortunately I think this makes mineral supplementation almost compulsory to optimise health. Tablet options are often made cheaply from grinding up mineral rocks which means that the content of the tablet might not be fully absorbable by the body - this is termed bio-availability. Liquid mineral supplements are likely to be far more available but beware to check the ingredients - just because it comes from a natural source doesn't automatically make it ideal. Look out for supplements containing lead for example! My personal favourite at the moment are the Quinton products (see link in top left link box). It certainly made a huge difference to TD, my faithful dog, and saved his life when he was rapidly deteriorating with kidney disease. Having been on it myself I have definately noticed health benefits I wasn't aware I needed.
So what about Vitamins? The Recommended Daily Allowance (RDA) often quoted next to the amount of Vitamins in a product was calculated based on the minimum requirements to sustain life in an average adult in the 1950s. As I mentioned when talking about pet carnivore nutrition, there is a subtle but very important difference between the amount of some nutrient needed to sustain life and the amount needed to enable an individual to thrive. I'm certainly not advocating that we should all go out and consume massive amounts of vitamins but in order to optimise health we certainly need much more of some vitamins. Vitamins A,D,E & K are fat soluble and can be stored by the body. The B & C Vitamins are water soluble, required on a daily basis and excesses are excreted. As with minerals I prefer a liquid supplement for the best bio-availability from a natural source rather than man-made.
As an example, along with the "Cold and Influenza" Health Disk, high doses of Vitamin C (up to 5g/day) plus other anti-oxidants, Ellen Collinson's "Anti-B" herbs and Aerobic Oxygen will blast a cold/flu out of my body in 48-72 hours max without the need to take NSAIDs such as ibuprophen which only suppresses the body's natural and beneficial reaction to infection which is to get hotter as the immune system gears up.
Dangers of Processed Foods
As a general rule processed and refined foods are likely to create health problems. This is true for both sugar and salt. Both are required by the body and indeed the value of salt was recognised in ancient Rome when soldiers were paid in salt - hence the derivation of the word salary. Food grade salt that is sourced from natural mines such as those in the Himalayas contains many more minerals and salts than the refined sodium chloride we most commonly see, which is best kept for salting roads and footpaths.
Having touched the subject of sugar it brings me onto the subject of Aspartame. This is a man-made sweetener that has somehow managed to become included as an ingredient in a vast array of foods and drinks. It is ironic that it has done so as under the guise of being a so-called healthy replacement for refined sugar instead of reverting to another natural unrefined sugar. Aspartame is not good for health and doesn't require very much to reach toxic levels - approximately the equivalent of 4 cans of diet drink a day is reportedly sufficient. Although not everybody drinks that many cans of drink, take a look at the ingredients of your "Diet" grocery products especially but even non-diet products are now containing it. Check everything you buy and you will be appalled at how many products include it. Aspartame toxicity has been blamed for a 4-fold rise in the diagnosis of Multiple Sclerosis (MS) and Systemic Lupus Erythematosis (SLE). As you can see it is neurotoxic and has also been postulated as being a factor in Gulf War Syndrome. Likewise MonoSodium Glutamate (MSG) a commonly used taste enhancer, acts by altering your taste receptors and will also have other effects in your brain chemistry too - best avoided but a very common ingredient in gravy mixes and sauces etc!!! One can only assume that the food industry itself is aware of the problems as some Manufacturers and products make a point of stating they are MSG-free ...
Without going into too much more detail, check what you are putting into your body. Look at the ingredients listed on your food before you buy it. The more natural it is the more likely your body can digest and process it for your health benefit. Use qood quality supplements in a form your body can most easily assimilate and don't do anything to excess. A higher protein diet is less likely to put on weight although unlike our carnivorous pets, humans have a carbohydrate requirement too and high protein diets necessitate a high water consumption to prevent urea build-up in the body. Excess carbohydrate is stored as fat so don't eat too much simple sugars especially.
Be aware that foods can have more health implications than just obesity etc. Wheat and dairy intolerances/allergies are much more common than most people realise and are certainly common factors in digestive disorders such as IBS, diverticulitis etc. Some people have found that their asthma improves considerably by stopping eating potato. If you suspect an allergy keep a diary of your food and symptoms and look for correlations.
Microwave Cancer
How food is cooked can also have health implications. Microwave ovens work by super-heating water and fat molecules which then cook the proteins and carbohydrates. However super-heating fats creates changes in the fat molecules that doesn't happen with normal oven or hob cooking that makes them carcinogenic and increases the likelihood of cancer. The higher the power microwave and faster cooking you use the more likely this is. Is it any wonder that cancer generally and bowel cancer especially is on the rise with 1 in 3 or even 1 in 2 people expected to experience it at some point in their life.
Some people have gone the other way and only eat a raw diet - often described as a Paleolithic Diet. They claim to be more healthy with more vitality but of course the source of the raw food is very important. Other diets that have had very positive feedback inclued the "Eat Right for your Type" diet that recommends certain foods according to Blood type. However beware of believing that every food listed for your blood type in such generalisations is automatically good for you - we are still individuals too so become aware of how your body reacts to different foods.
Having said all this, enjoy your balanced diet 99% of the time and don't worry too much about eating something you think isn't totally healthy now and again. :-) Worrying brings it's own health issues and sometimes a little bit of what is bad helps to keep the body geared up to deal with it if you suddenly encounter a bigger dose!!! | 
