Hill's® Prescription Diet® y/d™ Feline

Prescription Diet y/d is the safe, effective and easy way to manage thyroid health. Clinically proven nutrition to restore thyroid health in 3 weeks.

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  • Key Benefits

    Prescription Diet y/d is the safe, effective and easy way to manage thyroid health. Clinically proven nutrition to restore thyroid health in 3 weeks.

    * 100% Satisfaction Guarantee - if you are unsatisfied for any reason, return the unused portion to the place of purchase for a full refund or replacement.





    Not Recommended For:

    Growing kittens, pregnant or nursing cats.

    Evidence-Based Clinical Nutrition:

    Limited iodine intake to control thyroid hormone (T4) production1-3
    Improves thyroid health in 3 weeks* (when fed as the sole source of nutrition)1
    Clinically proven nutrition to restore thyroid health, no pilling necessary1-3
    Complete daily nutrition with a taste cats love



    Additional Info:

    S+OXSHIELDTM: Formulated to promote a urinary environment that reduces the risk of developing struvite & calcium oxalate crystals

    Other Products to Consider

    No other products have the carefully limited iodine level of y/d to manage feline hyperthyroidism


    1 Yu S, Wedekind KJ, Burris PA, et al. Controlled level of dietary iodine normalizes serum total thyroxine in cats with naturally occurring hyperthyroidism. J Vet Intern Med 2011;25:683-684. Abstract.
    2 Melendez LD, Yamka RM, Forrester SD, et al. Titration of dietary iodine for reducing serum thyroxine concentrations in newly diagnosed hyperthyroid cats. J Vet Intern Med 2011;25:683. Abstract.
    3 Melendez LD, Yamka RM, Burriss PA. Titration of dietary iodine for maintaining normal serum thyroxine concentrations in hyperthyroid cats. J Vet Intern Med 2011;25:683. Abstract.

    *Urine pH of individual cats may vary due to complicating factors such as time of feeding before urine collection, type of urine collection, individual animal variation, and test methodology.

  • Feeding Guide

    How to adjust feeding amounts to maintain optimal weight.

    Because iodine intake from other food sources -- treats, another cats food, etc. -- can compromise the effectiveness of low-iodine nutrition, its critical that you follow your veterinarians feeding instructions carefully and feed only y/d.
    Adjust feeding amounts as necessary to maintain optimal weight. Monitoring your patient's condition will assure the nutritional recommendation provides the best results.

    • Reinforce with clients to feed Prescription Diet dry and/or canned food.
    • Gradually transition to the new food over a 7 day period.

    Adult maintenance

    Weight of Cat Amount per Day
    2 kg 35 g
    3 kg 45 g
    4 kg 60 g
    5 kg 70 g
    6 kg 80 g
    7 kg 90 g

  • Ingredients

    High quality protein and thoughtfully sourced ingredients.

    Corn Gluten Meal, Pork Fat, Whole Grain Corn, Soybean Mill Run, Egg Product, Chicken Liver Flavor, L-Lysine, Potassium Citrate, Lactic Acid, Dicalcium Phosphate, Fish Oil, Choline Chloride, Calcium Carbonate, Calcium Sulfate, DL-Methionine, Taurine, L-Tryptophan, Brewers Dried Yeast, vitamins (Vitamin E Supplement, L-Ascorbyl-2-Polyphosphate (source of Vitamin C), Niacin Supplement, Thiamine Mononitrate, Calcium Pantothenate, Vitamin A Supplement, Riboflavin Supplement, Vitamin B12 Supplement, Pyridoxine Hydrochloride, Folic Acid, Biotin, Vitamin D3 Supplement), minerals (Ferrous Sulfate, Zinc Oxide, Copper Sulfate, Manganese Sulfate), L-Carnitine, Mixed Tocopherols for freshness, Natural Flavors, Beta-Carotene

  • Average Nutrient & Caloric Content

    4147 קק"ל/ק"ג (415 קק"ל / 100 גרם)

    רכיב תזונתי כפי שנאכל1
    מרכיב יבש2
    כפי שנאכל, בסיס קלורי3
    גרם / 100 קק"ל
    Protein 34.1 36.3 8.2 g / 100 kcal
    Fat 24.2 25.8 5.8 g / 100 kcal
    Crude Fiber 2.9 3.1 0.7 g / 100 kcal
    Carbohydrate / NFE 26.8 28.5 6.5 g / 100 kcal
    Calcium 0.89 0.94 214 mg / 100 kcal
    Phosphorous 0.62 0.65 148 mg / 100 kcal
    Sodium 0.24 0.25 57 mg / 100 kcal
    Potassium 0.78 0.83 189 mg / 100 kcal
    Magnesium 0.062 0.066 15 mg / 100 kcal
    Iodine 0.2 ppm 0.2 ppm 4.53 ug / 100 kcal
    Taurine 0.32 0.34 76 mg / 100 kcal
    Carnitine 611.6 ppm 650.6 ppm 14.75 mg / 100 kcal

מוצרים קשורים