I have developed a meal replacement shake that has served me
well in my weight loss effort (down 95 pounds in 3 years).
I'd like to run it by you folks for comment, along with a
few questions I have.
My shake formula is driven by body weight, protein intake
rate, and protein/carbohydrate/fat ratio.
I'm a 49-year-old male and live a somewhat sedentary
lifestyle (my only exercise is walking 3-5 miles per day) so
my daily target protein intake rate is 0.8 grams per
kilogram of body weight. I use a prot/carb/fat calorie ratio
of 30/40/30. For my current weight, 180 lbs, this works out
to a daily target of 65.5 grams of protein, 87.3 grams of
carbohydrate, and 29.1 grams of fat using the standard
factors of 4C/g for protein and carbohydrate and 9C/g for
fat, a total of 873 calories per day.
The recipe for an individual shake is calculated as if I
were going to consume four of them each day. However, I only
drink three, with my fourth meal being soup or salad to add
variety. Each shake is therefore intended to provide 25% of
my daily requirements.
I pre-mix the shakes (without water) and store the powder in
the refrigerator. Each evening I blend enough for three
shakes, with 36 ounces of water, and decant them into 12 oz
containers for use the next day.
I use nonfat dry milk as a base and add some flavorings and
fiber. I then add soy protein isolate, cornstarch, and oil,
as required, to bring the formula into the P/C/F 30/40/30
ratio. Here are the contents of a single shake using the
recipe for my current weight of 180 lbs:
Nonfat Dry Milk - 6.0 Tbsp Cocoa Powder – 0.6 Tbsp Splenda
– 0.8 Tbsp Guar Gum (Benefiber) – 1.6 Tbsp Milled Flax
Seed – 1.5 Tbsp Wheat Bran – 1.5 Tbsp Soy Protein Isolate
– 0.6 Tbsp Cornstarch – 0.7 Tbsp Oil (flax, olive,
canola...)– 0.2 Tbsp
My daily fiber targets are 20 grams soluble and 15 grams
insoluble. This formula yields 20 grams soluble and 17 grams
insoluble.
I supplement my diet with two multivitamins daily, as well
as additional C, E and beta-carotene. Additionally, while I
try to stick to the 3 shakes and soup/salad plan, I do eat
several "real" meals each week so I'm not too concerned
about a lack of nutritional variety.
Here are my questions:
1. Does a protein intake rate of 0.8 grams per kilogram of
body weight seem appropriate? How about the 30/40/30
Prot/Carb/Fat ratio? Do these parameters need tweaking?
2. I've had difficulty pinning down good fiber intake
targets. Does 20 grams soluble and 15 grams insoluble per
day seem reasonable?
3. I've read that some of the good things about soluble
fiber come from the gel it forms. My shakes seem to "gel
up" in the fridge overnight. Am I losing any benefit by
having this gel form before I drink them?
4. I've read that the soluble fiber gel can interfere with
the absorption of some medications. I usually take my AM
and PM vitamins either just before or just after drinking
a shake. Do you see any problem with this practice?
Thanks for your input!
Fred