Grocery Shopping & Mental Health

 Good nutrition is essential for physical and mental health.  

But changing one's diet is probably not going to cure depression or make your anxiety go away.  In fact, I'm concerned about various trends in health care which exaggerate the effect of dietary change.  For example, there are programs run by professionals with titles such as "food as medicine" in which patients are taught about healthy dietary practices.  But the therapeutic value here is very modest, especially if compared to a well-controlled placebo condition.  It may be beneficial to have nutritional education, dietary change, and regular supportive meetings supervised by a professional, but there would be a lot of nonspecific factors involved here, including a benevolent structure, group support, empathy, and focus on general healthy lifestyle habits other than nutrition, which contribute to clinical improvements.  And sometimes these programs end up recommending various supplements or "alternative" nutritional habits which have a very questionable evidence base.  

The basics of healthy nutrition, however, are simple.  There is a lot of room for individual differences in preferences or restrictions, but the foundation of a healthy diet is vegetables (especially fresh green vegetables); fruit; nuts; whole grains and other complex carbs with high fiber; beans or legumes; lean protein; healthy fats such as olive oil; fish; and much less red meat than the average North American consumes.   High-sugar and simple-carb foods such as pastries, cookies, cakes, candy, etc. should be greatly reduced--often if you've reduced these a lot, you can enjoy the occasional sweet treat even more, without needing to have as much.  Ultraprocessed foods, such as chips, processed breakfast cereals,  instant noodles, soft drinks, and fast foods, should be avoided.  

These basics do not lead to some kind of unpleasant, spartan lifestyle, these are the foundations for a wonderful, sensually pleasing diet in which every meal can be a joy of life, with no end of variety possible, from simple snacks to daily meals to gourmet adventures.  

When wandering through a major grocery store the other day, I was struck by how hard it can be to make healthy choices.  These stores have incredible variety.  It's easy to find all the perfect, healthy foods listed above.  But the problem is that junk food, ultraprocessed foods, candy, etc. are all marketed aggressively.  Whole rows of the grocery store are dedicated to junk food.  Shelf after shelf of chips, cookies, soft drinks, or even "fake health foods" such as sugary cereals or "vitamin water."  At the cashier, there is yet another opportunity to buy chocolate bars and other candy.  Even in the areas with healthier foods, such as the produce section or the aisles with baking products, there is often a display of some kind of ultraprocessed food or junk food on special.  

Junk food is designed to be enjoyable to eat, so that people will buy more of it.  In this way it is comparable to addictive products such as cigarettes.  Unlike cigarettes, there are no restrictions about how they are marketed.  And the companies manufacturing these products are earning billions.   So we have a whole generation of people, including young children, who are basically addicted to junk food.  The health consequences of this include much higher rates of obesity, as well as a likely decline in physical and mental health.  Another consequence is a decline in culinary culture--many people just aren't interested in the artistry of food, if they are addicted to processed products.  

One of my interests this past year has been learning Chinese, and as part of this I like to watch Mandarin language movies and TV series -- the Chinese culinary culture has probably been the healthiest one in the world, and likely is a factor contributing to better health and longevity in this population.  But even in China it appears that ultraprocessed foods are disturbingly common.  In modern Chinese movies, we often see the characters eating pizza, or visiting a grocery store, the shelves stocked with bags of chips and instant noodles etc.  So even in the healthiest culinary culture in the world, the bad nutritional habits of the West have crept in.  

What can be done about this?  Aside from individual education on this matter, and striving to make healthier choices, I think that public measures can help.  Other countries in the world are experimenting with having taxes on sugary foods, ultraprocessed foods, etc., and restricting marketing, especially to children.  It's a similar approach as we used to help reduce cigarette smoking in the population--it didn't require banning anything (and taking away anyone's freedom), it just required restrictions on advertising, display, marketing, and a tax on the product.  Another public measure that I would love to see is a subsidy on healthy foods such as vegetables, so that everyone could afford them more easily.