Hi Carrie...Looking at the labels on these powders I'd want to know where the fat sources are coming from since corn, soy, and vegetable oils can cause inflammation. The main ingredient of hydrolyzed corn starch indicates that it is high in fructose corn syrup which is a denatured food also linked to increased inflammation. My thoughts here are what you gain in calories you loose in inflammation in both the gut and lungs overtime.
Here are some other ways to add healthy, DHA-rich calories without dairy or sugars:
Ground Flax Seed: 3 TBSP gives you 130 extra calories and 10 grams fat, 8 grams protein, and fiber needed to balance any sugars from fruit
Ground Almonds or Walnuts: 1/2 cup almonds gives 225 calories, 24 grams of fat, 10 grams of protein; 1/2 cup walnuts gives 210 calories, 20 grams fats, 5 grams of protein and both add important fiber.
Coconut Milk: 1 cup coconut milk is 552 calories, 57 grams fat, 5.5g protein and it does have 13 grams sugars but also gives some fiber so GI wise I am think it might be okay.
I grind 1-2 TBSP of flax seed and about 1/4 cup nut together and then add to my smoothie ingredients (banana, can of coconut milk, crushed or fresh pineapple, a bit of coconut extract for extra tropical flavor or even coconut flesh if it is available). The one listed (very flexible) here <a target=_blank class=ftalternatingbarlinklarge href="http://www.cfnutrition4life.co...icle.php?article_id=30">http://www.cfnutrition4life.co...icle.php?article_id=30</a> is approx. 1065 calories according to the nutritionist who analyzed it for me. I also add the flax and nut mixture to my bread crumbs to create an extra calorie breading for chicken and fish. Other sneaky ways to add these high calorie, high nutritious choices to things all through out the day are, adding to oatmeal, pancakes, muffins, breads, breading vegetables and frying in olive oil...
There are some fruit smoothies too but you may want to opt for unsweetened juices only or try a "breakfast ice cream":
Banana, 1/2-1 cup frozen berries, ground flax/nuts, 1-2 TBSP of agave or honey and avocado. It will be very thick and you can sprinkly with granola or grape nuts on it for fiber. One cup avocado will add 240 calories to anything (22grams healthy fat) and maked it smooth like ice cream.
Another idea would be hemp protein powder and nutbutters for him since you can't do egg or goat milk. Adding a variety of these things throughout the whole day can add significant calories with the benefits of anti-inflammatory properties.
Sorry you are having to revisit this...your in my thoughts.