10 Best Heart Supplements For Dogs 2026 in the United States

Zesty Paws NAD+ Precursor Supplement for Dogs is designed to support healthy aging, muscle recovery, and heart health in dogs. It contains Niagen, a form of nicotinamide riboside chloride, which helps boost NAD+ levels—a molecule important for energy production and cellular repair. Offered in easy-to-use powder sachets, the supplement makes dosing simple and convenient. This product not only targets heart function by supporting steady energy supply but also aids metabolism and muscle health, which are important for active dogs as they age.

With a strong customer rating of 4.5 out of 5 from over 56,000 reviews, many dog owners report positive results. The brand offers a satisfaction guarantee, adding confidence to your purchase. While the supplement is not a medication, it complements a healthy lifestyle and should ideally be used alongside veterinary advice. Some pet owners might find the powder form less preferred compared to chewables, but it is helpful for mixing into food. This supplement is a good choice for dog owners looking to support their pet’s heart and overall vitality naturally, especially for aging or active dogs.

The Zesty Paws NAD+ Precursor Supplement is designed to support healthy aging, muscle recovery, and heart health in dogs. It delivers 60 mg of Niagen per capsule, which is a precursor to NAD+, a molecule important for cellular energy and repair. This makes it a strong option for pet owners looking to help their dogs stay active and maintain heart function as they age.

The supplement targets not only heart health but also muscle strength and cellular metabolism, which can contribute to overall vitality. The capsule form may require some effort to administer, especially if your dog is picky about pills. Zesty Paws is a reputable brand, and with over 56,000 reviews averaging 4.5 stars, many customers have seen positive results, indicating good effectiveness and satisfaction.

Consulting your veterinarian before starting any new supplement is advisable. This product is best suited for dog owners wanting to support their aging pets’ energy, heart, and muscle health, especially those open to using newer, science-backed ingredients.

Zesty Paws Cardiovascular Support for Senior Dogs is a soft chew supplement designed specifically to support heart health in older dogs. It combines several well-known ingredients like Taurine, L-Carnitine, CoQ10, and premium Sea Buckthorn, which together help promote normal heart function, healthy circulation, and antioxidant protection. The inclusion of sustainably sourced AlaskOmega Fish Oil adds beneficial Omega-3 fatty acids (EPA and DHA), which are key for cardiovascular wellness. The soft chew form makes it easy to give to dogs, especially seniors who might have trouble with pills.

With additional ingredients like Pumpkin Seed Powder, Hawthorne, L-Arginine, and vitamins, it aims to provide a broader immune and antioxidant boost. Customers rate it highly, with an average of 4.5 stars from over 100 reviews, indicating satisfaction and effectiveness for many users. The combination of trusted heart-supporting nutrients and positive feedback makes it a strong option for dog owners looking to support their senior pets’ cardiac health.

The 90-count package offers good value, especially for consistent daily use. It’s targeted to all dog breeds, but it is recommended to consult your vet before starting any new supplement to ensure it suits your dog's specific health needs.