Last year, I tracked everything I ate for eight days in January and four days in February. (See my blog posts here and here.) My idea was that my January tracking would provide me with some baseline data about my diet, then I would do a “check-up” each month to see if I had made any improvements. You can see how long that lasted.
I have made significant changes in my diet since then (the biggest change being that I’ve given up using cow’s milk), so I felt it would be useful to track my food intake again. I wanted a better picture of what my diet is like now and how it has changed since last year. To that end, I tracked everything I ate for six days last week, then plugged the numbers into a spreadsheet for analysis. I came up with some interesting data. To simplify, I’m just going to compare my current diet with January 2008.
First, the macronutrients. My daily average calories dropped from 2217 to 2154. The calories from fat dropped from 26% to 23%. Some of that change went to protein (which rose from 14% to 15%) but more to carbohydrates (from 60% to 62%). Of these numbers, I consider the percentage of calories from fat the most significant. (The USDA’s 2005 Dietary Guidelines for Americans recommends, “Keep total fat intake between 20 to 35 percent of calories”, although there are some nutritionists, such as Dr. McDougall, who consider lower levels to be safer, as low as 10%.) I am pleased with this reduction in my fat consumption.
In January 2008, about 8% of the calories in my diet came from animal protein. Animal protein accounted for about 59% of my total protein intake. Last week, about 7% of my calories came from animal protein, which represented about 46% of my total protein intake. Another measure of animal food intake is dietary cholesterol. My consumption of dietary cholesterol decreased by 15%, from an average of 127 grams per day to an average of 108 grams per day. (The American Heart Association recommends, “Aim to eat less than 300 milligrams of cholesterol each day.”) While I am not prepared to give up eating all animal-based foods at this time, I think it is healthy that I have been shifting away from them somewhat.
My consumption of dietary fiber increased 25%, from an average of 24 grams per day to an average of 30 grams per day. (A USDA fact sheet states, “The Institute of Medicine recommended 19 to 38 grams of fiber per day, depending on age and gender.”) Meanwhile, my consumption of sodium decreased about 10%, from an average of 2243 milligrams per day to an average of 2028 milligrams per day. (The American Heart Association says, “Aim to eat less than 2,300 milligrams of sodium per day” while the USDA’s 2005 Dietary Guidelines for Americans adds the following advice, “Individuals with hypertension, blacks, and middle-aged and older adults. Aim to consume no more than 1,500 mg of sodium per day.”)
So by all measures, my diet improved over the past year and a half. I am pleased to see these numbers, which confirm that the changes I have made in my diet are making a difference.
However, these averages do not tell the whole story. While I was tracking my food intake, a trend that I have previously noticed became quite clear. When I eat at home, I eat better than when I eat away from home. I am in the habit of preparing healthy meals and generally reach for healthy snacks when I am home. When I eat in a restaurant or at someone else’s home, sometimes I choose to eat less healthy foods because it is a special occasion, and sometimes I don’t have much choice–I don’t want to be rude and refuse to eat food that my host has prepared. It turned out that during three of the six days I tracked, I ate all my meals at home, and for the other three days, I ate one or more meals away from home. I decided to analyze these separately to see what difference it really made when I ate away from home.
The results were striking. I averaged 2079 calories per day when I was at home and 2230 calories per day when I ate away from home. Calories from fat increased from 21% to 25%. Calories from protein increased slightly, from 14% to 15%, while calories from carbohydrates dropped from 65% to 60%. My dietary cholesterol consumption increased from a daily average of 79 grams to 137 grams, an increase of 73%. Fiber consumption dropped 18%, from 33 grams to 27 grams, and sodium intake increased from 1427 milligrams to 2629 milligrams, a whopping 84%. By all measures, I ate better when I prepared my own food.
While it did take time and effort to track and analyze my food intake, the knowledge I gained is well worth it. Having quantitative data that shows the improvement in my diet reinforces my commitment to making healthier food choices. I will pay more attention to my food choices away from home. I will try to implement strategies like packing snacks to eat on the road or eating before a party so I eat less junk food during the party. All in all, I am proud of the progess I have made.