4 Alarming Concerns Around Soy Consumption

If you aren’t using Morellifit Protein, then what kind of supplements are you using? What is it made of and could it be harming you?

Supplements are a great way to provide your body with added nutrition that it may not be getting through diet, but with so many different kinds of supplements out there, are you sure you are using the best one for your diet?

In this blog, you’ll learn…

  • 4 reasons why you should avoid soy supplements at all costs
  • Best soy alternatives for vegans
  • If you can consume whey on a plant-based diet
  • Why whey supplements are superior to all others
  • How to choose the best supplement for your needs

If you are eating a plant-based diet, or are vegetarian or vegan, then the supplements you take are more likely to be plant-based. And if you are trying to avoid dairy, you are probably picky about the supplements you consume as well, as this is another common reason for choosing a plant-based protein.

Unfortunately, one of the most popular sources for plant-based supplements is soy and is growing in trend. This is because soy is a very cheap crop and profitable alternative to most other plant-based proteins on the market. But is this the best way to go?

The most consumed plant-based protein is soy, so the important question is just how safe is it?

Soy is consumed for numerous reasons. For some, they choose it because of their nutrition habits. For others, they believe it is a healthier option and this is understandable. Soy companies constantly market their products as being healthier than dairy or other plant-based options.

People turn to soy for numerous reason an alternative to dairy, replacing dairy-based products with soy-based products. Most people who replace dairy with soy believe they are doing so because soy is a healthier, low-fat option. They also like that it doesn’t include steroids or antibiotics. They don’t have to worry about it being grass-fed or grain-fed. They also don’t have to worry if they are lactose intolerant.

Whether you are turning to soy supplements because you want to go plant-based with your diet or to replace the dairy in your life, there are some things you should consider and probably some even better alternatives.


Breast Cancer – Soy is high in phytoestrogens, which can impact your risk of breast cancer as many studies have shown an increase in breast cancer among people who consume soy as it can stimulate the growth of estrogen-dependent tumors. One study, in particular, had women consume 38 g of soy protein isolate during a 5 month period. It was found that 30% of the women in the study saw an increased secretion of breast fluid, hyperplastic epithelial cells, and elevated levels of plasma estradiol [1, 2, 3].

Mineral Absorption – Soy also contains high amounts of phytic acid, which can decrease your ability to absorb minerals, such as zinc, magnesium, and calcium. Because of the phytic acid found in soy, it is less bioavailable than other supplements you can find on the market, impacting your body’s ability to break down the foods that you consume [4].

GMO – If you are consuming soy, chances are you are consuming a genetically modified product, as 90% of the soy sold in the US is genetically modified to be used in conjunction with the herbicide RoundUp, which has been known to increase the risk of cancer [5, 6, 7].

Vitamin D – Vitamin is something that we want, however, the type of vitamin D that soy provides is the wrong kind. What our body needs is Vitamin D3, but soy provides vitamin D2 which has no value to us and may even be harmful to our body [8, 9].


There are several different alternatives to soy that are more bioavailable and better for your overall health.

If you are following a vegan diet, the best types of protein supplements are pea protein and hemp protein. These are both high-quality plant proteins that are safer for your health than soy.

Other proteins that are safe to consume would be quinoa and rice protein.  


If you are not vegan but are instead on a diet that is plant based then what you want to go with is a whey protein isolate. Whey isolate contains less than 1 percent lactose, which means it is ok for consumption even if you are lactose intolerant or are lactose sensitive.

Many plant-based diets, including vegetarians, limit or cut out the consumption of meat, rather than completely eliminating all animal products. If your nutritional habits are plant-based there is a chance that you still consume products like cheese, yogurt, or eggs, as it is based on individual preference.


When it comes to whey there are two different types of whey protein that are consumed: Whey isolate and whey concentrate.

Whey isolate provides you with a higher concentration of protein than the concentration. It also contains a lower amount of carbs, fats, calories, cholesterol, and lactose. This is why it is preferred by people who are trying to maintain a low level of body fat. Consuming a whey isolate allows a person to maintain lower body fat while also being able to recover from their workouts.

This is important whether you are trying to build more muscle or lose weight.

When it comes to whey isolate versus other protein supplements, whey wins out because it is the most bioavailable and has the highest concentration of protein, even in comparison to casein, which a popular protein supplement among athletes [10].


Whether you are vegan and want a plant protein or you opt for the whey protein isolate, the key to picking a good supplement is to make sure it is high quality and clean. Look for a supplement that has a small ingredient deck of all natural ingredients. This means no artificial colors, flavors, or sweeteners.

And if you are going for a whey isolate you want to make sure that you are purchasing a whey that is sourced from grass-fed cows. Sourcing your products from grass-fed cows are important because they provide added benefits for your health.

The quality of your supplement matters just as much as the type of protein you consume, this is why Morellifit uses only the highest quality ingredients to make our protein. Morellifit Protein is a whey isolate that is sourced from New Zealand due to the strict standards they have on their cows, making it the cleanest whey on the planet. This also means you are getting whey sourced from cows that are grass-fed and free of antibiotics, chemicals, added hormones, and soy lecithin.

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