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Thomas Labs Meg-A-Cal (Gallon)
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Thomas Labs Meg-A-Cal (Gallon)

Item: 110-3810-L00
Compare to: $55.99

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This item has been discontinued. Looking for an alternative? Try PHS Vita-Cal!

Mega Cal is a high calorie formula designed to help dogs and cats gain healthy weight while supplying them with essential vitamins, minerals, and amino acids. It can be used to help give nutritional support to pregnant, lactating, and recovering animals, and it can provide energy to working and sporting animals.

  • Provides Calories and Essential Nutrients to Dogs and Cats
  • Gives Nutritional Support to Pregnant and Lactating Animals
  • Provides Energy to Working and Sporting Animals
  • Contains Vitamins, Minerals, and Amino Acids


Guaranteed Analysis per teaspoon (6g):
Crude Protein 0.18% min
Crude Fat 38.23% min
Moisture 19.96% max
Ash 0.19% max
Phosphorus 0.0006% min
Potassium 0.0027% min
Magnesium 0.0067% min
Iron 0.53 mg
Manganese 1 mg
Iodine 0.5 mg
Vitamin A 1045 IU min
Vitamin D3 60 IU min
Vitamin E 6 IU min
Thiamine (Vitamin B1) 1.8 mg min
Riboflavin (Vitamin B2) 0.2 mg min
d-Pantothenic Acid 1 mg min
Niacin 2 mg min
Pyridoxine 0.8 mg min
Folic Acid 0.2 mg min
Vitamin B12 2 mcg min

Calorie Content: 4650 kcal/kg or 27.9 kcal/teaspoon.

Ingredients: Sorbitol, Soybean Oil, Cod Liver Oil, Water, Milk Product (Dextrose, Sodium Bicarbonate, Sodium Chloride, Potassium Chloride, Pregelatinized Starch, Dried Lactobacillus acidophilus Fermentation Product, Dried Enterococcus Faecium Fermentation Product, Kaolin, Ascorbic Acid, Niacin Supplement, Choline Chloride, dl-Methionine, Menadione Dimethylpyrimidinol (Source of Vitamin K), Sodium Selenite, Zinc Proteinate, Dried Whey, Silicon Dioxide, Flavor), Ferrous Fumarate, Xanthan Gum, Potassium Carbonate, Sodium Benzoate (a preservative), Beef Flavor, Vitamin E Supplement, Niacinamide, Thiamine Hydrochloride, Manganese Sulfate, d-Calcium Pantothenate, Pyridoxine Hydrochloride, Riboflavin, Magnesium Sulfate, Foluc Acid, Calcium Gluconate, Vitamin A Acetate, Vitamin D3, and Vitamin B12 Supplement.

Useful Information

Administer orally or add to food. For dogs and cats, give 1 tablespoon per 10 lb of body weight, daily or as needed. Shake well before each use. For dogs and cats only. This product is intended for intermittent or supplemental feeding. To prevent bottle from leaking. twist top into closed position after last pump of each use.

Customer Reviews

Review Summary
2 Reviews
100% (2)
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100% Recommend this product (2 of 2 responses)
By CoonPals
Ridge Manor, Florida
Thomas Labs Meg-A-Cal Gallon
January 18, 2019
Best price for this item! I've found several items on this site, after checking prices with S/H included on many pet sites, & this was best!! Nice company!
By Flea
excellent product
April 21, 2015
Tried other wt. gain products. This by far the best. I have trouble keeping wt. on my Dobie. Within three days his wt. is back.

Questions and Answers

1 Question & 1 Answer
from Springwater, NY asked:
September 30, 2015
Is this roduct safe for cats? I know that some other high calorie supplements that have similar ingredients but also have propylene glycol say not to use for cats.
1 Answer
This product is not indicated for use in cats. Tomlyn Nutri-Cal for cats is a similar product and does not include propylene glycol.
Submitted by: Customer Service on October 9, 2015

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