An Avocado A Day…

It seems everyday a new study emerges showing that eating more dietary fats improves cholesterol levels. At the same time, carbohydrate consumption tends to have a much more negative affect in most diseases and health conditions.

One recent study suggests that fats found in nature, in this case avocados, are more beneficial than their man-made counterparts, such as canola and sunflower seed oil.

Although the sample size was small (only 45 individuals), the structuring was far more reliable than most diet “studies”. Most studies look at massive populations to form weak correlations between food and health. This study, however, used randomized, crossover, controlled feeding trials.

The experiment separated participants into three groups:

  1. A group eating a low-fat diet. Fat accounted for about 25% of daily calories, in line with USDA recommendations.
  2. A group eating a moderate-fat diet, accounting for 35% of calories. The extra fat calories in this group came from processed seed oils.
  3. A group eating a moderate-fat diet, with extra fat coming for one whole avocado a day. Fat still accounted for about 35% of calories.

After a mere 5 weeks, the moderate-fat group consuming seed oil saw a reduction in “bad cholesterol” of almost 10 points. The low-fat group experienced a statistically insignificant drop of less than 5 points.

The truly remarkable part: the moderate-fat group eating one avocado a day experienced an average reduction of almost 15 points!

This could be due to a couple factors.

First, avocados contain 14 grams of fiber, more than 3 servings of oatmeal! Fiber reduces blood sugar spikes and helps the body transport cholesterol.

Second, avocados are extremely nutrient-dense, providing 15% to 50% of almost every vitamin and mineral. Man-made oils contain no essential nutrients.

I started eating one avocado a day almost 3 years ago and almost immediately noticed this benefit to my cholesterol levels.

The nice thing is that avocado has a very mild taste and can be seasoned to compliment almost any dish. Sometimes I’ll have an avocado with an omelet in the morning. Other times I’ll make guacamole as a substitute for a bun when I have burgers for dinner. It is very rare that I skip this valuable and versatile food.

My final takeaway from this study:

Replace man-made fats, such as canola and soybean oil, with whole foods like avocado and coconuts. You’ll feel full longer, provide your body with more nutrients, improve blood markers of health, and get closer to eating what nature provides!

SONY DSC

Meal Comparison, Part 3: Dinner

Today’s post will be the last side-by-side comparison of a Standard American Diet (S.A.D.) meal and a grain-free, unprocessed meal.

For Part 1, a breakfast comparison, click here. For Part 2, a lunch comparison, click here.

The healthy American dinner consists of:

Pasta1 cup whole wheat pasta (enriched)

1 cup generic tomato sauce

2 ounces low-fat ground turkey

1 cup skim milk (fortified & fortified)

1 brownie (using a recipe recommended by Ellie Kroger, Registered Dietician)

The whole foods meal contains:

Burgers

8 ounces ground beef (grass-fed)

½ avocado

1 cup asparagus

1 large sweet potato

Both meals provide 650 calories.

First, let’s look at the macronutrients and fatty acid profile:

. Total Carbs Fiber Net Carbs Protein Sat Fat Mono Fat Omega 3 Omega 6
S.A.D. Dinner 90 10 80 25 5 5 250 12500
Whole Foods 45 15 30 45 10 17 500 2000

As we saw in the previous comparisons, the S.A.D. meal provides almost 100 grams of carbs with only 10 grams of fiber and very little healthy fat. Even adding sweet potato to the grain-free dinner results in only 30 net carbs, fewer than half the carbs in the Standard American dinner.

The whole foods dinner offers a more adequate amount of healthy fat, particularly saturated and monounsaturated, aiding in absorption of vitamins, providing a stable energy source, and maintaining healthy cells.

Finally, the omega-3 to omega-6 ratio, which should ideally be close to 1-to-2, is 1-to-50 in the Standard American Diet meal. The tomato sauce and “healthy” brownie both contain canola oil, molecularly the same as corn oil, causing inflammation and cardiovascular disease.

Next is the vitamin content of both meals:

. Vit A Vit C Vit D Vit E Vit K Vit B6 Vit B12 Folate
S.A.D. Dinner 4500 20 0 3 30 0.5 1 50
Whole Foods 27000 42 0 7 83 2 5 180

No surprise here! Vegetables, meats, and healthy fats provide far more vitamins than refined grains, diary, and oils.

Finally, the mineral content of each meal:

. Calcium Iron Magnesium Potassium Zinc Copper Manganese Selenium
S.A.D. Dinner 570 5 150 1500 4 0.5 2 55
Whole Foods 130 10 150 2000 13 1 1 36

If you recall the previous comparisons, you’ll remember that grains and dairy provide more of certain nutrients.

The Standard American Diet provides more Manganese and Selenium, and ties for Magnesium. However, just a handful of nuts would close this gap and set the whole foods meal ahead in all categories.

In conclusion, the dinner based on whole foods provides more for the body, with less detriment, than the S.A.D. dinner.

I will do one more follow up post totaling the days’ worth of macro- and micro-nutrients. In the meantime, feel free to ask any questions about particular values, foods that may address shortcomings, or if you’d like me to analyze your own meal options.

Thanks for reading!

Meal Comparison, Part 1: Breakfast

Over the last year, news headlines showcased that saturated fat is not dangerous, animal products are not inherently unhealthy, and most of our health problems stem from over-consumption of refined carbohydrates.

However, change takes time. For the last 50 years, the public has been taught to fear fat and cholesterol, and to eat meals built around dense sources of carbs – particularly grains.

The science is now widely available showing that grains disrupt healthy gut function, provide an enormous carb load with few nutrients, and are inflammatory. But even with this information, many people are bewildered by recommendations to choose healthier options.

I can post in-depth articles discussing anti-nutrients, biological mechanisms, and studies…but sometimes a side-by-side comparison is more effective.

So, today I will post part 1 of a series comparing the Standard American Diet (S.A.D.) with a grain-free approach. Each post will compare two meal options, starting with breakfast!

Since I clearly favor a grain-free approach, I have taken the following steps to ensure objectivity:

I picked the healthiest standard breakfast options doctors and dietitians recommend. This includes:

oatmeal1 cup of oatmeal (not instant; fortified and enriched)

1 cup of orange juice (not from concentrate; fortified)

½ cup of skim milk (fortified with vitamins A & D)

1 handful of raisins

For the grain-free breakfast, I picked foods that conventional wisdom would classify as too “high calorie” or “unhealthy”, including:

omelet1 omelet made with 4 whole eggs, spinach, and sweet red peppers

1/2 avocado

1 tomato

2 slices of bacon

Both meals provide 600 calories and take less than 15 minutes to prepare.

After running all the foods through a nutrient spreadsheet, here are the total offerings of each meal:

Meal Carbs Fiber Protein Sat Fat Mono Fat Omega 3 Omega 6
Standard Breakfast 136 9 15 1 1.5 50 2000
Grain-Free Breakfast 25 13 35 10 20 1300 3500

The oatmeal breakfast provides a major carb bolus, with very little fiber or fat to mitigate the resulting blood sugar spike. At over 100 grams of sugar per meal, it’s no surprise that almost 30 million Americans suffer from diabetes.

These carbs also increase small, dense LDL, causing atherosclerosis. Meanwhile, the grain-free breakfast provides 13 grams of fiber, along with 10 grams of saturated fat and 20 grams of monounsaturated, both raising HDL, or “good” cholesterol.

I included a column for omega 3 and omega 6. These are both essential fats, but O-3 has an anti-inflammatory affect while O-6 causes inflammation, increasing the risk of cardiovascular disease.

Historically, humans consumed a 1-to-2 or 1-to-4 ratio of O3-to-O6. The oatmeal breakfast skews this massively, with a ratio of 1-to-40, while the omelet and guacamole is more ideal (1-to-3).

Clearly the grain-free breakfast is healthier in terms of cardiovascular function, inflammation levels, and blood sugar control. But what about vitamin content?

Meal Vit A Vit C Vit D Vit E Vit K Vit B6 Vit B12 Folate Choline
American Breakfast 2700* 125 50* 0.4* 3* 1 0.5 280 70
Grain-Free Breakfast 10000 250 70 8 184 2 3 330 560

Once again, the omelet, bacon, and guacamole trump the oatmeal and fruit in every category!

You’ll also notice an asterisk in the vitamin A, D, K, and E categories. The oatmeal breakfast offers less of these vitamins but also lacks the fat and cholesterol necessary to activate and absorb these 4 fat-soluble vitamins.

The American breakfast offers far less B vitamins, and folate, which is problematic since carbohydrates use up B vitamins in their processing. It is common for Americans that don’t consume enough animal products, yet eat a large amount of grains, to require vitamin b supplements and sometimes even injections.

Finally, let’s look at the minerals offered by each meal:

Meal Calcium Magnesium Phosphorus Potassium Zinc Copper Manganese Selenium
American Breakfast 500* 160 590 1300 2.9 0.5 2 24
Grain-Free Breakfast 170 120 600 1700 4.4 0.8 0.8 75

The oatmeal and fruit offers more in 3 categories! Grains are an excellent source of magnesium and manganese, while dairy provides a substantial amount of calcium.

I have once again put an asterisk next to calcium. Dairy and grains create a very acidic environment in the body, potentially leaching calcium from the bones.

The omelet and guacamole offer more minerals in total…but a daily serving of nuts may help shore up the few shortcomings.

As evidenced by this side-by-side comparison of a Standard American Diet breakfast, and a breakfast based around plants, animal products, and healthy fats, grains are not necessary.

There are a few minerals that are more abundant in grains which may support an argument for their occasional inclusion, but the idea that we should eat 6 to 11 servings a day is ludicrous.

Whether we look at carbohydrate load, inflammatory factors, or nutrients, grains clearly are not the “heart healthy” option we have been told.

Next time you’re contemplating what to make for breakfast, crack a few eggs and fry up some bacon – I’ve never heard someone complain that these foods aren’t more tasty…and now we know they are healthier too!

The Most Simple Lunch Recipe

I’d love to share my recipe for lunch on the weekdays.

My typical weekday consists of one-on-one work with clients from 7 to 11AM. At this point, I do my own workout for an hour or so and then eat. After a quick lunch, I have more clients until about 1PM, at which time I do administrative work at my gym. This lasts until 5:30PM, after which I finish the workday with a couple more clients.

I keep myself scheduled back-to-back for most of the day, meaning I don’t have time to spend 30 – 60 minutes preparing lunch. At the same time, I refuse to resort to snack bars, sugar drinks, or other meal-replacements.

Instead, my approach is to bake a few chicken breasts on the weekend and package them in microwave-safe containers. At the same time, I put a few avocados on the counter so they can ripen throughout the week.

By the time lunch rolls around, all I have to do is mash up the avocado with a little salsa or hot sauce, microwave the chicken for a couple minutes, and I have a perfectly balanced and satisfying lunch!

Below are instructions for the initial food preparation:

  1. Preheat oven to 400°F. While waiting, trim the chicken breast of fat if it is not locally and naturally raised. If it is from a local, humane source, the fat will be healthy and therefore, won’t need to be trimmed.
  2. Place chicken in oven when at temperature. No need to use any seasonings as these will go in the guacamole the day of the meal.
  3. Check chicken after 30 minutes. It will be done when the internal temperature reaches about 170°F.
  4. Remove and let cool. Separate into meal-sized portions and store in fridge.
  5. Pack chicken, seasonings, and avocado in the morning before leaving home. I usually use local salsa or hot sauce, but garlic, salt, honey, lemon, or herbs and spices may be used as well.
  6. When hungry, microwave chicken for 2 minutes. Mash avocado, with seasonings, while waiting.
  7. Voila – you have homemade guacamole and a healthy protein source in only a couple minutes!

I usually recommend that active individuals weighing over 150 pounds shoot for about 8 ounces of chicken and a full avocado. Smaller individuals may dial back to half an avocado and 4 to 6 ounces of chicken.

Even if you use the larger portion size (8 ounces of chicken and a full avocado) the entire meal will only come to about 600 calories while providing 50 grams of protein, 30 grams of healthy fats, and 14 grams of fiber.

The nutritional profile of this meal will fulfill the following daily requirements:

10% Vitamin A

OLYMPUS DIGITAL CAMERA90% Vitamin B6

16% Vitamin B12

33% Vitamin C

21% Vitamin E

53% Vitamin K

80% Selenium

20% Iron & Copper

30% Magnesium & Zinc

45% Potassium

Clearly this meal provides a significant amount of vitamins and minerals, but it is also very affordable. Avocados are usually $1 each (or less if you live where they grow), and chicken breast costs between $2 and $4 a pound. The maximum this meal will cost is $3!

The nutritional density of this meal, the affordable price of the ingredients, and the quick and easy preparation proves that there’s no longer an excuse to resort to meal replacement bars – frequently loaded with sugar, processed soy, and refined grains.

So, this weekend, pick up some avocados, put some chicken in the oven, and you’ll have the perfect lunch for the following week!