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Monday, January 23, 2012

Food Guide? Not So Sure!


Let me start by saying that by no means am I a nutritional expert. I have no formal training in the field, I’m not a doctor, nurse, pediatrician…. you get the picture. This is purely my opinion based on the research and reading I’ve done, and of course personal experience. The topic of nutrition and the government recommendations for a ‘healthy’ diet are particularly interesting to me, especially since starting my weight loss journey a few years ago. It’s interesting because if given nutritional guidelines are generally accepted as truth, why do so many people struggle to lose weight even when following them? There has to be something more to the story, and as it turns out there’s a LOT more.

Let’s start with the generally accepted notion that a large portion of your calorie intake should be from carbohydrates. The food guide recommends a whopping 6-8 servings of grain products per day, second only to fruits and vegetables which have a 7-10 serving per day recommendation. Now let’s stop and think about this for a moment; you’re trying to tell me that the majority of my calories should come from products only available for consumption through processing? There are a few exceptions to that of course, a few grains require little to no processing for human ingestion, but the vast majority of them definitely do. Seems illogical doesn’t it? How is it that something that isn’t naturally occurring in our habitat supposed to make up a large portion of our diet? Don’t get me wrong, there is a type and amount of carbohydrate intake needed for every person but I certainly don’t think it’s in the quantities suggested by the Canada food guide. There is even some evidence and suggestion that very little carbohydrate ingestion is needed to achieve a healthy diet. The other, in my opinion, grievous error in the food guide is that they place very little emphasis on the quality of carbohydrate. They recommend that half of your grain intake be from whole grain products, but that leaves room for 3-4 servings a day of products containing refined white flour and the like, a fairly unhealthy recommendation in my opinion. There is significant evidence that refined white flour and sugar play a crucial part in the development of metabolic disease and obesity.

The other major issue I have with the food guide is the scant recommendation of protein it suggests. Two to three servings of protein a day vs. seven to ten servings of grain a day? Lean protein is one of the best sources of clean calories out there, and is essential to many of your body’s natural processes. Ingesting adequate protein is also vital when trying to lose weight. There is also a strange recommendation that meat alternatives such as tofu be ingested regularly. I see the importance of meat substitutes if you’re vegan or vegetarian, and I think they have a place in someone’s diet just like anything else, but why the recommendation to ingest a highly processed product over a natural, clean protein source?

The problem with nutritional dogma is that a lot of it is assumed with very little to no evidence to support its claims. We have adopted a ‘just because’ attitude towards many foods, for instance the argument against saturated fat. Why shouldn’t we eat it? Well, because ‘they’ say so. The evidence claiming saturated fats, particularly in meat, are bad for your health is ambiguous and open to interpretation to say the least. In fact recent research has indicated that a few particular types of saturated fat may in fact be good for our bodies, contrary to decades of popular belief. We are also under the assumption that certain foods increase LDL (bad) cholesterol, but in fact the association between ingested cholesterol and blood cholesterol is loose and difficult to prove. Some studies have shown that in fact that there is no association at all.

For my body, a diet high in clean protein, free of processed or refined foods, low or devoid of white sugar, and full of a variety of vegetables seems to be the right combination. I think the key to the success of any diet is to eat foods as close to their natural state as possible. Stay away from anything processed, or at the very least try to limit their intake. The way that your body processes fats, carbohydrates, and proteins is very different from one another. Nutritional ingestion is so much more complex than the ‘calories in, calories out’ approach. The KIND of calories makes an absolutely monumental difference. A study recently done with overweight women showed significantly higher weight loss in test subjects put on a low carbohydrate diet versus a higher carbohydrate diet with the same caloric intake. What that tells me is not necessarily that a low carb diet is perfect for everyone, but it tells me that we really know very little about the complex processes involved in the breaking down and utilization of energy.

Each of our bodies is unique and our nutritional needs should be addressed as such. We can’t make blanket food recommendations for the whole of society like the government has done with our food guide. How your body reacts and processes different food sources is something that may require a bit of trial and error. Try out a diet for a few weeks, see how your body feels and how you feel emotionally, and adjust as necessary. What worked for your friend or for your body ten years ago may not be the same as what you need today. The important part is to give yourself adequate nutrition for your body’s specific needs. This will vary dramatically if you are active, sedentary, or an athlete. LISTEN TO YOUR BODY. Find a lifestyle and way of eating that makes you happy and keeps you healthy, that’s the only way you’ll maintain it for any length of time.

If you’re really struggling with your diet, seek outside opinion from a nutritional expert that can help you navigate the choices and create a plan that’s right for you.

Happy eating!

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