Can Cats Drink Soya Milk? Is Soy Healthy For a Cat?

a kitten drinks a bowl of milk

Can Cats Drink Soy Milk?

It is in our nature to spoil the once we love in any way possible. There is no exception for the ones we adopted to the family, your little furry feline, right?

Often, we do not know if that what we think we give our love ones is healthy or at least not damaging the little feline at the end. In your case you want to find out if a cat can drink soy milk with no side effects?

Let me start by showing you more in depth what soy and milk to its core have or not have.


What is and Contains Soy?

Well, Let Us Find Out The Facts!

Soy was popularized as we found it in Okinawa, Japan. Many people consider Okinawa the healthiest place on planet Earth. Therefore the thought soy itself must be healthy lays in its nature, right?

The soy that Japanese consumes at this place has nothing in common with the soy you can buy and intake today.

The problem of the soy we consume today has phytoestrogens. These phytoestrogens are estrogen copier in the body. A male start consuming soy regular develops feminine characteristics because of an overdose of estrogens.

A woman will increase the risk of breast cancer, cervical cancer, PCOS (polycystic ovary syndrome) and other related disorders related to hormone imbalances, according to Dr. Axe stating on his website. If you want to dive deeper, click this click here.

He also states that 90% of the soy we are consuming today is genetically modified. These genetically modified foods open the inner body doors to cause many problems by killing good bacteria in our gut region. They might cause improper working of our digestive system.

His take is for the above stated reason to avoid soy milk and soy products in general. In case you use or drink soy products for allergy reasons, it is healthier to switch to either goat or coconut milk. A soy product that still fulfills the matter purpose is soy lecithin.

So, it seems obvious that soy is healthy and beneficial, right?

Well, not entirely.​​​​​

If you are taking the normal soy as you buy it in the supermarket the answer is, yes! Soy is bad for you!

On the other hand eating the right soy; opposite effect is the result. 

What Soy to Avoid in Your and the Cat’s Diet

As I have mentioned; another soy is the organic soy, fermented soy. That soy is chemical, fertilizer, and pesticides free.

Fermented to its core means turning a milk into probiotic yogurt or cabbage into Sauerkraut.

map of okinawa

The Japanese Soy

picture of the okinawa island

Natto, the soy you find in Okinawa, Japan helps people to manage a healthy life of one hundred years of age and beyond. It is the healthiest fermented food.


The secret ingredient is vitamin K2. It even surpasses the vitamin K1 in its useful therapeutic benefits. You can find vitamin K1 in nutritious spinach and kale. If you happen to have week bones and concentration problems, natto could be your prayers answer.

Ok, let me split the above in a digestive overview

The soy you buy in the supermarket is in 99% cases bad for you.


GMO and toxic to your system. (GMO= genetically modified soy bean)

 So, stay away from that one!

The real soy you find in Okinawa, Japan, helps if you have:

  • weak bones
  •  want to increase concentration
  •  your lifespan
  •  and being able to dance with your wife/husband even your age starts to show a three digit number.

I guess with main negatives regarding the common soy you buy, the question can a cat drink soy milk?, is obsolete.

If not helpful to the human digestive system, how much less to a cat, right?

especially if it is mixed with milk.

Milk has lactose. Lactose is a sugar and the only time an animal, in our case, a cat is exposed to lactose when still a baby and the kitten’s mum weans him/her. Being able to digest the milk sugar lactose the kitten’s digestive system needs the enzyme lactase. At birth the little furry feline still possessed the enzyme being able to drink the mother’s milk. But with growth the digestive system produces less and less of the lactase enzyme resulting in a disability to digest lactose. This makes a cat lactose intolerant.

When a lactose-intolerant cat drinks milk in combination with soy milk, the undigested lactose passes through the intestinal tract and the undigested sugars produce volatile fatty acids.

The outcome can go far beyond an upset stomach. Vomiting or even diarrhea can be the upcoming symptom.

I do not want to deep dive here since I have written an article about “can cats drink milk?", already. Read the article by clicking this link here.

Feeding a kitten cow’s milk is not a good idea. The reason being is; every species makes milk in their diversified composition. The amount of calories, fat, protein, and lactose differs, sometimes tremendously.

What is your take on the article? Can a cat drink soy milk? Did or do you give soy milk to your cat? How did he/she reacts? Do you still give it to him/her once in awhile, or even regularly as a treat?

Please, I love to hear and read your story. Write it in the little box below the article.

Thank you for your visit!


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