Lifestyles have changed but our biology has not

By the end of the 19th century, the Industrial Revolution brought many changes in the relation between humans and nature, and between humans and their nature. The changes continued and amplified after World War II with the rise of the so-called consumption society in developed countries. I say so-called because the economic model is not so much about consumption as it is about buying more goods all the time, while consuming them is secondary. In my opinion, the consumption society should be called the shopping society, as the latter term would describe its purpose more accurately.

The change of economic model has been accompanied with changes of lifestyle, both at home as at work. The level of physical activity has dropped in many jobs and now a lot of workers spend hours daily sitting. With TV and computers, the same trend has happened at home, especially with more and more housing units in urban centers without yards. Even though, many people try to practice some physical activity, there is a sharp contrast with life as it used to be. Nothing is perfect and progress also has its shortcomings.

If our societies have evolved amazingly quickly over the past several decades, our biology has not. Our metabolism, our physiology and our biochemistry are very much the same as they were tens of thousands of years ago, even as before agriculture appeared in human societies. The contrasts with today are many.

By then, food was scarce and humans had to travel long distances and put a lot of physical activity to find something to eat. Today, food is plentiful and all it takes is to sit in your car to drive to the supermarket, which involved little physical exercise, and with online deliveries, the physical activity is even reduced to zero. The former hunter will now turn into a larva.

By then, there would be days without food and if the human organism could survive, it is because it has the ability to store reserves in the body from times of abundance to be used when the hunters and gatherers would come back empty-handed. Today, many people do not even know hunger at all. The easy availability of food exceeds the nutritional needs and what is eaten but not burnt ends up being metabolised into body fat. The old biology does what it is supposed to do, as one of its key roles is to deal with periods of food shortages. In the developed world, people consume on average about twice as many calories, twice as much protein and fats as they actually need. Since that is on average, you can imagine the multiple for some people! The excess portion does not disappear. It is transformed into fat reserves. I like to say that if you eat twice as much as you should, it should not be a surprise to end up twice as big as you should be. Joke aside, it is actually a good thing that animals store food reserves as fat and not as starch as plants do. Reason for that is the calorie density of starch versus fat: 4 calories per gram for starch versus 9 calories per gram of fat. In other words, if you have an excess weight of 10 pounds, it would be 22.5 pounds of starch, so more than twice the burden. Plants do not move, so it is not much of an impediment, but if you need to run away from a predator, an additional 12.5 pounds would make you an even easier prey.

Another difference between modern foods and the old biology is that our bodies have evolved to eat what I would call primary foods; some might want to call them primitive foods even. My point is that our biology is actually rather effective in extracting nutrients from rough foods. A side effect of processing foods is that it makes nutrients more easily accessible, because the processing often breaks physical barriers to the nutrients. As the nutrients are easier to access and our biology is eager to get them, it is only logical that processed foods are metabolised differently and faster than primary foods, thus in fact increasing their nutritional density, which results in more excess nutrients ready to be sent to the fat tissue.

A lot of the issues about the skyrocketing statistics of obesity, overweight, diabetes, cardiovascular diseases and other food-related ailments find their origin in the fact that our lifestyles have changed while our biology has not. Food availability has changed. Foods have changed. Agricultural methods have changed. Economic models have changed. Diets have changed. Level of physical activity has changed. They all contribute to an imbalance between consumption and needs, which results to food-related problems. This is why, it is more important than ever to make education about food, agriculture and nutrition mandatory in schools. If we consider that education is the basis for better lives, then there is no argument why these topics should not be life basics for all children and adults alike!

Also considering the cost of health issues related to food, I bet you that education about food, agriculture and nutrition would pay off for individuals, insurance companies and governments alike.

Copyright 2019 – Christophe Pelletier – The Happy Future Group Consulting Ltd.

Advertisements

Why we will change our eating habits, one way or the other

Here is another article (from 2011) from my other website, The Food Futurist that is popular and worth reading:

In the discussion about producing enough food for the 9 billion people the world will have by 2050, one of the sensitive issues, especially in the overfed world, is about what to eat and how much of it. There always is resistance to change, and changing eating habits may be even among the most difficult challenges we have. Eating habits are developed unconsciously since early childhood, and switching to conscious choices is not easy to achieve. It requires will power and self-discipline.

Most of the gloomy scenarios about the challenge of feeding the world are based on the assumption that the diet model would have to be the Western diet, and in particular the American diet. This is far from certain. Actually, do not expect this to be the case.

Changing eating habits will happen in two ways. One will be voluntary and the other will be a consequence of food prices.

There is a growing awareness of the health consequences due to overconsumption of food. All the stakeholders seem to blame each over for obesity, diabetes and other heart conditions, and try to convince the public that they are not the cause of the problem. Whose fault is it? Is it meat? Is it corn syrup? Is it fast food? Is it salt? Is it lifestyle? Is it the parents’ fault? Is it the schools with their vending machines offering snacks and soft drinks? We all have read such statements. Here is a scoop: overweight is caused by consuming more calories than are burnt through physical activity. Ailments are the results of rich and unbalanced diets. Eating (and drinking) too much, and too much of the wrong things is bad for you. There is a reason why gluttony is one of the seven deadly sins! Actually, our societies should have a close look at that list, because we might be in trouble.

In Western countries, we eat too much, and that should not be a surprise to anyone. Obesity and diabetes are becoming society problems in the USA, but other countries are following the same path. Europe and China have a rising percentage of obese people, especially young people. Even in Africa, there seems to be an increase of the number of overweight people. A recent study confirmed this (click here for the interactive chart). Awareness about health problems has already generated action. There are government campaigns. Food producers are reviewing their formulas and are working toward healthier products, in particular by lowering the content of salt and sugar of their foods. More and more consumers are also adjusting their eating habits, mostly by changing what they buy and where they buy it. The trend towards healthier and more natural food is growing and it will not stop. Only biotech companies seem to ignore this fact. This food trend is not just in Western countries but in China, too, the demand for natural and organic foods is increasing. After all, nobody really feels happy with being fat or unhealthy. If some people are taking action to improve their diets and its impact on the environment, this voluntary choice is still about a minority of the population, today. One of the reasons for this is that healthy diets seem more expensive than the junk fattening eating habits. I say seem, because those who can cook know that it is quite simple to make delicious balanced meal for less than the supersize combo deep fried so-called menu.

Money matters. That is a fact. This is why money is probably the best incentive for change. And the future will bring us plenty of incentive to change our diets. The current concerns about food prices, and the food riots of 2008, have created awareness about food supply. Although the price hike is more the result of investors, not necessarily speculators, looking for a safe haven for their US dollars through transactions in futures contract, the reality is that the commodity markets, even on paper, becomes the “official” market price. This enters the real economy and affects the price of food for households all over the world. The poorer countries are more sensitive to food price inflation, and this has the potential to cause very serious unrest.

Regardless of the current causes of food price increase, simple economics show that when demand increase, while supply has difficulties to keep up, prices increase. And this is exactly what will happen. In a previous article, I showed that the potential for meeting food demand, or I should say the demand for nutritional needs, of 9 billion was there. Quite easily. However, in this calculation, I indicated the road to success includes reducing food waste and a reduction of the quantity of meat in the diet. This means that we need to change our behaviour towards food.

If there is a sensitive topic about diet, this has to be meat. Opinions vary from one extreme to another. Some advocate a total rejection of meat and meat production, which would be the cause for most of hunger and environmental damage, even climate change. Others shout something that sounds like “don’t touch my meat!”, calling on some right that they might have to do as they please, or so they like to think. The truth, like most things in life, is in the middle. Meat is fine when consumed with moderation. Eating more than 100 kg per year will not make you healthier than if you eat only 30 kg. It might provide more pleasure for some, though. I should know. My father was a butcher and I grew up with lots of meat available. During the growth years as a teenager, I could gulp a pound of ground meat just like that. I eat a lot less nowadays. I choose quality before quantity.

The future evolution of the price of food is going to have several effects. The first one is the most direct. As food becomes more expensive, consumers look for the more affordable alternative first. If their budget is tight, they buy slightly smaller portions. People will slightly reduce their food intake. Those who were over consuming might actually benefit from a positive impact on their health. For those who already were struggling, this will be more difficult to deal with. From all the food sorts, animal protein will be the most affected by an increase of the price of food commodities. Already today, there are clear signs from the meat and poultry companies that the price of feed is seriously squeezing their margins. As usual, passing the price increase to consumers will take time, as retailers will resist. If the price of agricultural commodities is to stay high, consumers will inevitably have to accept price increases for food in general, and for meat and other animal products in particular. The price of meat is going to be affected by other factors than just feed prices. The need for more control on food safety issues, the stricter environmental regulations that will come for animal husbandry, on the land and in the sea, a change in animal husbandry practices, especially a lower use of antibiotics and farms with lower densities of animal will all contribute to an increase in costs. Energy will become more expensive, too. A whole system based on cheap commodities is about to change, simply because there will not be any cheap commodity anymore. These are all adjustments to rebalance our consumption behaviour from the unbridled overconsumption of the past decades, when consumers were not thinking about the consequences of their actions. The industry will figure out how to increase efficiency to contain some of the cost increases, but the change of farming practices will make meat significantly more expensive than it is today. The price of ad-lib cheap meat is ending. The future dynamics of food prices as presented here will be ongoing. A long as we will not have adjusted our diets to a new equilibrium, meat will keep increasing faster than other basic food staples, until meat consumption, and therefore meat production, will reset to different levels. Do not expect this to happen overnight. It will be a gradual process. There will not be any meat or fish riots. If food riots happen, they will be about the basic food staples, simply because the first ones to riot will be the poorer among us, and their diet is composed mostly from rice, wheat, corn, cassava or potatoes. Should the situation become dire, governments will intervene to ensure food for the poorest. Such price systems are already in place in many developing countries, and they are likely to be maintained, and even strengthened.

The same critical factors to keep food prices in check are very much the same as the ones that I presented in the previous article that I mentioned earlier: food waste reduction, moderate meat consumption per capita; and economic development, especially in Africa.

Copyright 2011 – Christophe Pelletier – The Happy Future Group Consulting Ltd.

Nutrition basics should be taught in school

Here is one of the articles (from 2009) from my other website, The Food Futurist, that motivated me to create this website:

When food costs twice!

A recent report showed that the annual medical cost of obesity reached $147 billion (see article). On the other hand the contribution of the meat and poultry industry in the US is $832 billion annually. Therefore, we can expect ongoing arguments between economic interest and health care costs for a while. The simple fact is that too many Americans do not eat a properly balanced diet and that should change.

The most efficient way to improve eating habits is by understanding nutrition and educating children at an early age about health and food, and about diseases caused by either unbalance or excess. Food safety is not only about bacteria or residues, but also about handling food properly and eating right.

People know actually very little about proper nutrition. The average person may have some ideas about how many calories he/she needs on a daily basis, but it hardly goes much further than that. Only few people know how many grams of protein they should consume on a daily basis. They know even less how many grams of fat they need. When it comes to carbohydrates, the situation is just as confused and confusing. Most people do not even know how the different groups of carbs (starch, sugars and fibers) are metabolised and what ratio between them they should consume. The result is a diet that has negative long-term effects.

If the FAO estimates the daily calorie needs at 1,800 for an average human being, the averages in developed countries are much higher, reaching about 3,500 on average for Western countries and even 3,800 in the US. The same conclusion is true for protein and other nutritional elements. It should be no surprise then that when people eat twice as much as they should, they get twice as big as they should, too. The reality is that in developed countries, people do not eat what they need, but they eat what they want. And they want too much.

Balanced nutrition is not difficult to understand, but someone needs to teach it. As parents have about as little knowledge and understanding as their kids do, schools would be quite well inspired to put nutrition on their curriculum. After all, schools are the places where future generations are educated to do the right things in the future, or at least it should be part of their mandate. Helping people eating right is part of creating healthy and prosperous societies. Sick societies will not be leaders. Of course, including nutrition in the curriculum is not enough for schools. They must also provide foods and drinks that contribute to healthy eating. Offering kids access to junk foods and junk drinks in vending machines may generate revenue for schools, but it works against helping kids to have a healthy diet. If they have the choice, kids will not spend their lunch money on water and broccoli. The responsible adults in charge must help them make the right choices. Offering treats is not to schools to decide, but only to the parents.

Copyright 2009 – Christophe Pelletier – The Happy Future Group Consulting Ltd.