You can make Sam healthy low carb protein shakes using http://www.swansonvitamins.com/swanson-ultra-grass-fed-certified-rbgh-free-vanilla-whey-protein-powder-420-grams-14-8-oz-pwdr (comes in chocolate & vanilla).
Boost, Ensure & Glucerna are junk. They contain including fructose, soy oil, canola oil, corn syrup & maltodextrin. Nothing healthy in these.
Glucerna:
Water, Corn Maltodextrin, Sodium & Calcium Caseinates, Sucromalt, Glycerine, Soy Protein Isolate, Cocoa Powder (Processed with Alkali), Fructose, High Oleic Safflower Oil. Less than 2% of the Following: Canola Oil, Soy Oil, Plant Sterol Esters, Calcium Phosphate, Magnesium Chloride, Sodium Citrate, Soy Lecithin, Magnesium Phosphate, Natural & Artificial Flavors, Potassium Citrate, Choline Chloride, Potassium Chloride, Ascorbic Acid, Carrageenan, Potassium Phosphate, Acesulfame Potassium, Ferrous Sulfate, Sucralose, dl-Alpha-Tocopheryl Acetate, Zinc Sulfate, Niacinamide, Calcium Pantothenate, Chromium Picolinate, Manganese Sulfate, Cupric Sulfate, Vitamin A Palmitate, Pyridoxine Hydrochloride, Thiamine Chloride Hydrochloride, Riboflavin, Folic Acid, Biotin, Sodium Molybdate, Potassium Iodide, Sodium Selenate, Phylloquinone, Cyanocobalamin, and Vitamin D3.
Boost:
Water, Corn Syrup Solids, Sugar, Milk Protein Concentrate, Vegetable Oil (Canola, High Oleic Sunflower, Corn Oils), Calcium Caseinate, Sodium Caseinate And Less Than 0.5%: Potassium Citrate, Artificial Flavor, Magnesium Chloride, Magnesium Phosphate, Salt, Ascorbic Acid, Sodium Ascorbate, Beta-Carotene, Biotin, Niacinamide, Calcium Pantothenate, Vitamin B12, Vitamin B6 Hydrochloride, Thiamin Hydrochloride, Riboflavin, Folic Acid, Potassium Iodide, Calcium Phosphate, Soy Lecithin, Choline Chloride, Vitamin E Acetate, Vitamin A Palmitate, Vitamin D3, Vitamin K1, Carrageenan, Potassium Chloride, Zinc Sulfate, Manganese Sulfate, Cupric Sulfate, Chromic Chloride, Sodium Molybdate, Sodium Selenite, Ferrous Sulfate
Boost Glucose Control:
Water, Milk Protein Concentrate, Tapioca Dextrin, Vegetable Oil (Canola, High Oleic Sunflower, Corn Oils), Fructose, Cocoa Processed With Alkali, Calcium Caseinate, Sodium Caseinate, And Less Than 1.0%: Inulin, L-Arginine, Partially Hydrolyzed Guar Gum, Potassium Citrate, Citric Acid, Calcium Phosphate, Sodium Citrate, Salt, Microcrystalline Cellulose, Sodium Ascorbate, Soy Lecithin, Magnesium Phosphate, Vitamin E Acetate, Choline Chloride, Artificial Flavor, Beta-Carotene, Maltodextrin, Sucralose, Ascorbic Acid, Ferric Pyrophosphate, Zinc Sulfate, Biotin, Vitamin B12, Niacinamide, Carrageenan, Calcium Pantothenate, Manganese Sulfate, Cupric Sulfate, Vitamin B6 Hydrochloride, Thiamine Hydrochloride, Riboflavin, Vitamin A Palmitate, Folic Acid, Chromium Chloride, Vitamin D3, Potassium Iodide, Vitamin K1, Sodium Molybdate, Sodium Selenite.