Posts Tagged: triglycerides

Fats / Nutrition / Questions — 0 Comments
17
Mar 09

Milk. Part 1

Shannon recently asked:

What is the truth behind chocolate milk? I have heard that it is better for you than regular milk, and that you should drink it after a hard work out.

The answer to this question requires some background information on milk, so lets take a step back and look at the broader topic of dairy in general.

The verdict on dairy’s effectiveness as a healthy nutrient source has not been passed yet. There seems to be a war raging between those for the consumption of milk, mainly the dairy industry, and those against it, mainly vegan activists, and People for the Ethical Treatment of Animals (PETA).

As in most wars unfortunately, truth is usually the first victim, and the dairy battle is no exception. Propaganda put out by both parties of the debate have left little room for objective investigation, and truthful reporting of the facts.

Milk, it would seem is yet another case of the West’s industrial complex destroying a food that was once a valuable source of nutrients. Much like beef, chicken, and pork, our quest to squeeze the most profits out of a resource has left it barren of nutrients, and full of unknown additives. This shift is not just happening in animal products. Fruits and vegetables have long been selected for genes that express themselves as the best looking, best tasting, and longest lasting produce. Sounds good doesn’t it? Unfortunately, these traits have come at the detriment of our nutrition and health, as nutrients were needlessly bred out in favour of a taste (Read: Higher sugar content).

Similarly, through the processeses of pasteurization and homogenization, milk has been effectively stripped of most of it’s natural enzymes and bacteria that are necessary for the proper digestion of dairy products.

Furthermore, the common misconception that fat is evil has lead to the mass production of reduced fat milk.

Never drink reduced fat milk. (skim, 1%, 2%…)

Fat is taken out milk through a process that over-heats the milk until is it becomes a powder. The fat is separated, and then water is added back to the powder until a milk like consistency returns. You are essentially drinking water with milk ingredients to it. Not milk.

The heat, and exposure to oxygen during the powdering process also damages cholesterol in the milk, which can cause injury to your arterial cells, as well as cause a pathological buildup of plaque in the arteries similar to having high triglycerides.

Heating milk also:

  • Alters milks amino acids, lysine and tyrosine, making the proteins in milk less available for use.
  • Lowers Vitamin C content as much as 50%.
  • Lowers the water-soluable vitamin content as much as 80%.
  • Destroys vitamin B12 completely.

To mention just a few…

These destroyed vitamins are added in artificially after the pasteurization and fat reduction processes so that they may appear on the nutrition label.

If you would still like to consume milk, your best option is to try and find a source of raw milk. Unfortunately, raw milk is illegal to buy in Canada, however, the option does exist to buy a share in a cow. Drinking raw milk from a cow that you own is not illegal. Also, cheese is still allowed to be made from unpasteurized, raw milk. Emmental and Gruyere are just a few of the options.

The second best alternative to raw milk is to buy whole milk, or switch to goats milk which can still be bought in a raw form.

It seems like many other foods, paying attention to the source is the best way to ensure you are eating quality dairy. Furthermore, just as our diet affects our health and performance, the diet of our dairy source is equally important. I will cover importance of what cows are built to eat, and how that is important to humans in the second part of this series.

I admit I have digressed from Shannon’s original question, but it was necessary to formulate a complete answer. As you have read, milk is a good source of protein and vitamins… in it’s original state. Commercial production however, has destroyed most of what is good about milk, and the nutrients that it does contain are artificially inserted backing into the milk product.
Also milk, being high in lecithin produces a high glycemic load, and thus a high insulin response. Adding chocolate syrup (sugar) to milk adds to insulin response, and should thus be avoided.

There was a study however, published in 2006 which indicated that chocolate milk aids in recovery when taken after intense athletic workouts. The study authors believe this to be due to its ratio of carbohydrates to protein, among other nutritional properties. The study was small in scale and partially funded by the dairy industry, but the results may warrant further study. (“Chocolate Milk: The New Sports Drink?”, Associated Press, 24 February 2006)

Diet — 0 Comments
10
Mar 09

The Paleolithic Diet

In today’s over-advertised culture of fad diets, and miracle weight-loss pills, how is the average health conscious consumer supposed to weed out the good from the bad?

To answer this question, let’s look back into our past for a minute.

What we know as humans (the genus Homo in one form or another) have been on Earth for about 2 million years, and their predecessors were here up to 7 million years ago.  Combined, these early humans had around 9 million years to adapt to a diet that remained relatively unchanged for most of that time.  We became, through millions of years of evolutionary trial and error, a species of omnivores who were able to derive energy from both plants an animals. This ability to eat a variety of foods allowed us to maximize our energy intake from our surroundings, but it also helped keep our population in check, because only a certain amount of calories could be obtained from hunted animals, and foraged plants (many plants in their raw forms, like grains, beans and potatoes, are inedible and even toxic to humans).

This all changed around 10,000 years ago however, with the remarkable discovery of cooking. Cooking granted us access to calorie rich food such as grains, beans, and potatoes because the heat destroyed enough of the toxins and enzyme blockers to render these plants edible, forever changing human histroy, and in turn, our diet. The effect of cooking had an enormous effect on our food intake- perhaps doubling the number of calories that we could obtain from the plant foods in our environment. Other advantages were soon obvious with these foods:

  • they could store for long periods (refrigeration of course being unavailable in those days)
  • they were dense in calories- i.e. a small weight contains a lot of calories, enabling easy transport
  • the food was also the seed of the plant- later allowing ready farming of the species

These advantages made it much easier to store and transport food. We could more easily store food for winter, and for nomads and travelers to carry supplies. Food storage also enabled surpluses to be stored, and this in turn made it possible to free some people from food gathering to become specialists in other activities, such as builders, warriors and rulers. This also caused an explosion in the human population and in turn set us on the course to modern day civilization. Agriculture, factory farming, and the refining and processing of food into… something other than food, were technologies what were soon to follow.

What does this mean for me?

For millions of year our bodies had to adapt to eating mostly meat, fish, fowl, and the leaves, roots, and fruits of many plants. This diet has been coded into our DNA, and it is the diet that humans function most optimally on. Proof of this can be found in the few remaining hunter-gatherer tribes still living in the world. Most, if not all are strong, fast, have straight teeth and perfect eyesight. Also, cases of arthritis, diabetes, hypertension, heart disease, stroke, depression, schizophrenia and cancer are also absolute rarities.

The common factor: Lack of exposure to a Western diet!

So why fight your genes? If you need a diet to follow, why not follow the one that your body has been designed by time for?

How do I follow a Paleolithic Diet?

I will borrow from CrossFit’s Greg Glassman on this one. He has very succinctly reduced the Paleo way of eating into a few simple words.

Eat meats and vegetables, nuts and seeds, some fruit, little starch, and NO sugar.

That’s all folks. So simple a 5 year old could figure it out. Memorize this line, ingrain it in your mind, tattoo it on your body if you must. These words: Eat meats and vegetables, nuts and seeds, some fruit, little starch, and NO sugar, should ring in your head every time you are thinking about food.

To elaborate a little, what Coach Glassman is saying when he shortened the Paleo diet to this simple sentence is:

  • Try and keep your food shopping to the perimeter of the grocery store.
  • If it comes in a box, or needs a nutrition label to tell you what is in it, IT’S NOT FOOD!
  • If doesn’t expire, IT’S NOT FOOD!
  • If you are eating out, get extra veggies and skip the potatoes, fries, sweet potatoes, etc.
  • Do not eat grains, pasta, bread, rice or beans, all of which wouldn’t have been available to our Paleo ancestors.
  • Make sure you are eating enough good fats. (Fish Oil especially!)

Yes this is a low carbohydrate diet, and what carbs you do consume should be coming from green, leafy vegetables. More on why we should all be lowering our carb intake can be found in my article on triglycerides. Also, as mentioned above, evidence of the lower-carb, Paleo diets effects on the body can be seen in the body compositions of the few remaining indigenous tribes scattered throughout the world.

More details about the Paleo way of eating can be found in Loren Corain’s excellent book: The Paleo Diet: Lose Weight and Get Healthy by Eating the Food You Were Designed to Eat.

The final word.

For every food decision you make, ask yourself this question first: Would a caveman have eaten that?

We may not live in a Paleolithic world, but our body, and it’s biological process are very much a relic of that era. On the time line of human history, our advances in food technology are very recent (2 million vs. 10,000 years), and with evolution being a slow process, our bodies haven’t had a change to catch up to our brains.

Fats / Nutrition — 0 Comments
10
Mar 09

Triglycerides

What are triglycerides?
Triglyceride is the scientific term given to the fat stores that your body created for use as energy when it has run out of glucose to burn from carbohydrates.

When you eat a carbohydrate, your body breaks it down into simple sugars known as glucose, which is an instant energy source for your cells. The glucose in your blood stream triggers an insulin response, and your cells open up to take in energy. When your cells have absorbed all the glucose that they need, the excess is converted to glycogen via the liver. Glycogen gets stored in your muscles ready for the next time you exert yourself physically. The more muscle you have, the more glycogen you can store, this is why bodybuilders can consume massive amounts of carbs.

Once your muscles have had their fill of glycogen, the excess is sent back through the liver to be converted into triglycerides to be stored as fat. And as is evident from the high obesity rates in North America, the body can always find a place for more fat.

Note: Not all fat is created equal… Continue reading →