Best Cat Antioxidant Supplements in 2022

Last update: January 20, 2023

Are antioxidants safe for cats?

Yes, antioxidants are safe for cats. In fact, they may even be beneficial for your feline friend. Antioxidants are substances that help protect cells from damage caused by free radicals. Free radicals are unstable molecules that can cause cell damage, leading to inflammation and disease. Antioxidants help neutralize free radicals, preventing them from causing cell damage. Some research suggests that antioxidants may help boost the immune system, protect against cancer, and reduce the risk of other chronic diseases.

Can cats have astaxanthin?

Yes, cats can have astaxanthin, and it may even be beneficial for them. This powerful antioxidant can help protect cats from free radical damage and improve their overall health. Some studies have even shown that astaxanthin can help boost cognitive function in cats. So, if you're looking for a way to help your feline friend live a long and healthy life, consider giving them astaxanthin.

Can I give human Krill Oil to my cat?

Can you overdose on antioxidants?

Yes, you can overdose on antioxidants. When taken in large doses, antioxidants can cause side effects such as gastrointestinal upset, headaches and skin rashes. Antioxidants are also known to interact with certain medications, so it is important to speak with a healthcare professional before taking them.


Dr. Harvey's Coenzyme Q10 Dog & Cat Supplement Review:


Dr. Harvey, his pet foods, and his vitamins are all very popular with us. This has been used for an elderly cat with CKD and CHF. No kidding, you can call Dr. Harvey and speak with him directly. What I observed about this product was that after a few days, Kitten's nose, tongue, and gums all became noticeably pinker, suggesting that his blood flow and circulation had improved. In all the years we have been in company, Dr. Harvey given us many recommendations that we have put into practice. Dr. Harvey is regarded as a pioneer in the field of nutrition. He created the keto diet for overweight puppies, and we frequently eat his dried, raw meals for cats.



Dr. Bill's Feline Health Defense | Pet Supplement | Pet Health Supplement for Cats| Includes Turmeric, Zinc, Ashwagandha, Milk Thistle, CoQ10, and Bacopa | 60 Grams Review:


We were informed that there was no treatment option for our recently adopted cat's feline leukemia and that the only thing we could do was to support her immune system. Her regular supplement regimen also includes Lysine and Colostrum. She was told two years, and now almost three have passed without any health difficulties at all. Even though she was retested, she is still positive and doing well. She hasn't experienced any health issues—there is no cure—that FELV-positive cats typically have. I'll keep applying this to all of my pets.



Tomlyn Immune Support Daily L-Lysine Supplement, Fish-Flavored Lysine Powder for Cats and Kittens, 3.5oz Review:


Normally, I don't like to substitute different goods for my cat's nutrients. I was using the more expensive lysine powder that my veterinarian recommended. I took a risk and tried it after double-checking the ingredients and discovering that it was precisely the same.He enjoys it! His willingness to consume his wet food—which now contains Lysine, DMG, Salmon Oil, and Probiotics—has not changed at all.Since I spend a lot of money on his food, I always love discovering products that are a little less expensive. Since he takes a Lysine supplement for life, low-carb/high-protein foods are preferable to ensure that he never runs out of arginine (Lysine controls the amount of arginine in the body; therefore, more lysine reduces the amount of arginine, which is only a problem if the cat is eating a high- My little carnivore should be eating meat anyway because he tends to flair up under even the slightest stress (he's a nervous little cat), so I'd rather be safe than sorry. The DMG helps a lot, but since he frequently takes a double dosage of lysine, I prefer to make sure he's eating a lot of meat (and thus Arginine).From now on, he will take this as his usual Lysine supplement. Thank you!



Felisyl Immune System Support Granules - Support Healthy Tissues, Respiratory and Vision for Cats - 3.5 oz Review:


I'll start by emphasizing that you won't see results right away. Although I use this product on both of my cats, I bought it expressly to treat the stomatitis in one of them. Here is some background:A cat with stomatitis will only consume wet food and has swollen gums, plaque buildup, and poor breath. He saw a veterinarian, who suggested having his teeth removed (for thousands of dollars). I made the decision to test whether this Felisyl medication and Proden PlaqueOff Dental Care for Dogs and Cats would be beneficial. When both items are regularly fed to their wet food, neither of my cats seems to detect any flavor differences.*Following approximately three months of use for a cat with stomatitis, the following results have been observed: **Plaque has been reduced (but not fully gone); ***Swelling appears to be under control; ****Bad breath is neither better nor worse; and ****Now that my cat is consuming solid food, things have drastically improved! I can now give him regular food in addition to the wet food that has Felisyl and Plaque off, as well as dental treats.I'll keep using this product till my cat's next appointment with the vet (July 2016). When that happens, I'll update my analysis to reflect whether his health has sufficiently improved to avoid the need for extraction.



Vetoquinol Enisyl-F Oral Paste For Cats, L-Lysine HCI Nutritional Supplement 100 ml Review:


A few months ago, my American shorthair cat who is six years old was identified as having feline herpes. I was paying my vet roughly $60 per bottle. I like the man because he treated my cat from the moment she was rescued as a stray and saved her life, but that is a hefty markup. However, and more crucially, this stuff actually functions and does so rather effectively. My cat began to sneeze and struggle to breathe after I spent a few days without any in stock. Her respiratory symptoms were completely gone after three doses.The veterinarian had recommended two squeezes daily, but after experimenting with the dosage, I discovered she only need one to stay healthy. She weighs roughly twelve pounds. Perhaps larger cats require more, or perhaps her feline herpes isn't as bad as it is in most cats. Fortunately, I work from home and can keep a careful check on her. I can report that the sneezing and breathing problems have disappeared, and I hope that it continues that way. My little sweetheart, she.Even with the 50% off reduction, this product is still pricey, but I've found that I can get more pulls out of it than the 100 that the manufacturers had guaranteed. When injecting twice a day, I can easily get two months, but now that I've discovered I can cut that in half, one bottle will last nearly four months, so when you take that into account, the price isn't awful at all.I spray the medication over her meal. She enjoys the flavor.For the treatment of feline herpes, I wholeheartedly endorse this.



Tomlyn Immune Support Daily L-Lysine Supplement, Fish-Flavored Lysine Chews for Cats and Kittens, 30ct Review:


Fantastic L-Lysine snacks! They only receive 4 instead of 5 stars since they contain corn syrup.The fact that one treat has the 500 mg of L-Lysine that my kitties need is my favorite aspect. The last brand we used required 12 treats for each cat (there were a total of 3 cats) to receive the 500 mg. As a result, I had to offer 36 treats daily and separate the cats at medication time to make sure they all ate their 12 snacks. With only one treat, it's much simpler—they finish it in about 5 seconds, and we're done! There is far less possibility of other greedy cats snatching your treats:-)Moreover, they appear to enjoy the flavor a lot. They smell strongly, rather like bacon. They make me think of dog treats.Three out of three cats enjoy the taste, which is great for cats who require the high dose of 500 mg! Win/win.We haven't noticed any significant changes, but then again, we didn't notice any significant changes with the other brands we've tried, so I can't say whether or not the L-Lysine really helps. Therefore, I'm not sure if it helps or not, but it's worth a go.



Vetoquinol Azodyl Kidney Health Supplement for Dogs & Cats, 90ct - Probiotic Pet Well-being - Help Support Kidney Function & Manage Renal Toxins - Renal Care Supplement - Easy-to-Swallow Small Caps Review:


Azodyl is pricey, but I've found it to be quite beneficial for my cat Cleo, who is 17 years old. My veterinarian suggested this product. Not to open capsules and sprinkle over meals, according to the bottle. Our vet agreed that it would be best to mix the capsule into her wet food because this cat can spit capsules out with the rapidity of a bullet and because holding her as she tried to swallow one freaked her out so much. Cleo approves of this approach. Since she lives indoors, her food intake is closely watched. The other caution to be aware of when placing an internet order is this product, aside from the price. Must remain cool, hence careful shipping with ice packs and other precautions must be taken. The medication must be kept in the fridge. The pills, if you must medication your pet, are quite small. Additionally, the gelatin capsule starts to degrade swiftly. I hope this is useful to someone.



VetriScience Laboratories - Renal Essentials, Kidney Health Support for Cats, 60 Chewable Tablets Review:


Absolutely essential for my senior cat with beginning renal failure and numerous system degeneration. This product has stabilized Isabelle more than anything else I've tried. I no longer have to provide sub-q fluids!UPDATED, 10 Jul 2017: This is listed as a chewable supplement. None of the animals for which I use this supplement will just consume this. The tablets are too huge to pill and are not covered. The only time I would ever consider pilling an animal with this would be a huge breed dog, and then coat the tablet with petroleum jelly so it will not get trapped in the animal's throat. Then follow with a substantial amount of water to ensure the tablet is not trapped somewhere between the esophagus and stomach. I am confused why vitamins like as these are not available in very small capsules or tablets for simple mixing/hiding in food or with Pet Tinic or other delicious liquid (chicken broth, tuna water, etc.) to syringe feed. I only seek for this kind of vitamin when an animal is suffering from onset system failure, which tends to happen with elderly pets and/or onset end of life. At that moment, the animal is often not feeling 100% and most likely suffering from hunger concerns. The last thing they will eat is this chewable tablet, even concealed in food - it's often tough to find a food they will eat – period - when they are not feeling well, esp. a cat!I presently give this to two cats and one dog. All are elderly with a plethora of concerns to include onset end of life system troubles/failures. I crush the tablets and blend them with their other supplements, Pet Tinic, Nutrical, and watered down Manuka honey for syringe feeding. I am very versed in advanced animal care and rehabilitation. The only way I know to ensure each animal continues on a consistent schedule of dosing is to syringe feed. For those pet owners who do not have the understanding of syringe feeding, or do not want to, I would think that this supplement would be tough to use.I do maintain by my previous assessment, that this supplement has done wonders to stabilize all three animals in relation to renal and bladder difficulties, and overall GI stabilities.



Pet Naturals of Vermont - UT Support for Cats, Urinary Tract Supplement, 60 Bite-Sized Chews Review:


Since we couldn't find either of our two preferred brands, we purchased these instead. Although it costs more than twice as much each treat, it seems to function equally as well.My two cats are very prone to bladder and urinary tract infections. Even Frontline/Advantage (I believe those are the brands) cannot be applied on them. I've taken flea medications that include nephrotoxic active ingredients, which harms the kidneys. Prior to these two siblings, I had never observed a problem with it. Up until I started purchasing urinary tract treats of a different brand with comparable components, they urinated blood and had issues with infections. (I no longer purchase flea medication. Before this incident, I was unaware that it was nephrotoxic.)I appreciate the fact that this brand offers vitamins that other brands do not. A supplement is beneficial because the animals are aging.They really appear to enjoy it. They eat it on their own initiative.It appears decent overall. In comparison to our favorite brands, it's simply too expensive.



Buddy & Lola L Lysine for Cats – Immune Support for Cats – Made in The USA – Natural Ingredients – Tasty and Healthy – Cat Decongestant, Allergies, Infection and Cold Relief Review:


I really like using these as a probiotic for my cat instead of the paste or gel. I had assumed that these would be chewy or sweet treats. Our cat found them to be dry and challenging to eat. For them to eat each, I have to cut them into three or four pieces. We do not have little cats; ours weigh 12 and 16 pounds. Due the texture and size, I would not advise for small cats unless you want to cut up. They do appeal to me more than the sloppy paste.


Do antioxidant supplements really work?

The body produces its own antioxidants to protect cells from damage caused by free radicals. However, some research suggests that taking antioxidant supplements may help to protect cells from damage caused by free radicals. Antioxidant supplements include vitamins C and E, beta-carotene, and selenium.

Do antioxidants reduce inflammation?

There is some evidence that antioxidants may help to reduce inflammation. Inflammation is a process in the body that is involved in the healing process, but can also be a contributing factor to some diseases. Antioxidants are thought to help reduce inflammation by scavenging harmful molecules known as free radicals.

Do cats need omega 3?

Cats are obligate carnivores, meaning that their bodies are designed to digest and use only animal-based proteins. This means that they do not require omega-3 fatty acids in their diet since they can synthesize these nutrients from other animal-based nutrients. However, some pet owners choose to supplement their cat's diet with omega-3 fatty acids, which can have health benefits.

Is fish oil an antioxidant?

Yes, fish oil is an antioxidant. Antioxidants are important for many reasons, including preventing cell damage and reducing inflammation.

Is krill oil good for cats?

There is no definitive answer to whether or not krill oil is good for cats. Some people believe that krill oil can help improve a cat's coat and overall health, while others believe that it may be harmful. Krill oil is high in omega-3 fatty acids, which are beneficial for many animals, including cats. However, krill oil also contains toxins that can be harmful to cats. If you are considering giving your cat krill oil, it is best to speak with your veterinarian first.

Is L Lysine good for cats?

Lysine is an amino acid that is essential for the proper growth and development of cats. It is necessary for the production of proteins and enzymes, and for the maintenance of healthy skin and coat. Lysine is found in meat, fish, and poultry. It is also available in supplement form.