3 deficiencies leading to weak bones for vegans

A vegan diet is all the rage right now with everyone from celebrities to scientists touting its benefits, not only for our health but for the planet as well. But while past research has found going vegan could help you lose more weight, improve insulin sensitivity to ward off type 2 diabetes, and even protect against certain cancers, the news isn’t all roses…

In fact, according to research by a team at the German Federal Institute for Risk Assessment, if you decide to go vegan and aren’t careful, vegan diet deficiencies can lead to weak bones.

Vegan eating

But before we get to the research, let’s take a quick look at what the vegan diet is to get a better idea of the factors behind its benefits, and its risks.

Eating vegan means eating a 100 percent meat and dairy-free diet.

So while vegetarians often still eat dairy and eggs, a vegan diet is even stricter, eliminating all animal products and byproducts to go completely plant-based.

This means giving up dairy and eggs, in addition to all meat sources of protein.

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Lacking in nutrients for bone health

The problem, according to the new study published in the journal Nutrients, is that while the vegan diet could be considered health conscious in many ways, it lacks the quantities of key nutrients necessary for good skeletal health.

This means that it could lead to weaker bones.

In fact, the researchers discovered that when they viewed ultrasounds taken of the heel bones of 36 vegans, their bones were unhealthier and less dense than those of non-vegans.

To top it off, blood work showed that compared to non-vegans, those who stuck to a vegan diet were lower in three important bone health nutrients including:

  • Lysine – An amino acid that you must get from food since your body can’t make it. It’s most prevalent in meat, including fish, as well as dairy and eggs, as well as soy. It’s not only necessary for collagen production (to form a support matrix for your body); it plays a role in calcium absorption.
  • Vitamin A – Eggs are a rich source of this vitamin, but you can get it from dark green leafy veggies too. A deficiency in this vitamin, which your body can’t make from scratch, is linked to fracture risk.
  • Vitamin B6 – Meat and fish are the best sources to get more of this vitamin, but you can also add it into your diet through foods like chickpeas and some fruits. This vitamin promotes connective tissue strength, bone marrow health and more, all of which can determine your fracture risk. Vitamin B6 also plays a pivotal role in cell functioning, energy metabolism, and acts as an anti-inflammatory agent — and that last one is why some researchers believe it can help against COVID-19.

 “People are turning to a vegan diet not only due to compassion for animals and awareness of environmental problems but also for health benefits. Indeed, scientific evidence suggests that a vegan or vegetarian diet may protect against many chronic diseases, for example, diabetes and cardiovascular diseases or cancer,” said the study’s principal authors. “However, a vegan diet was found to be associated with lower bone mineral density, which is associated with higher fracture risk, compared to omnivores.”

Avoid vegan diet deficiencies to keep your bones strong

So if you’ve gone vegan to grab its health benefits, it’s important to remember that while it could ward off some diseases, it could also leave your bones weak and at risk of fractures.

Supplement with bone-healthy nutrients including lysine, vitamin A and B6, or add in plant-based sources to get your nutrient fix. This means eating more soy, green leafy veggies, chickpeas and fruits like bananas, plantains, golden raisins, avocadoes and dates.

You don’t have to sacrifice your bone health for the all-over health the vegan diet can deliver. Being aware of these vegan diet deficiencies can keep you on track.


Vegan diet could cause weaker bones, study warns — StudyFinds

Low glycemic index vegan or low-calorie weight loss diets for women with polycystic ovary syndrome: a randomized controlled feasibility study — NIH

A low-fat vegan diet improves glycemic control and cardiovascular risk factors in a randomized clinical trial in individuals with type 2 diabetes — NIH

Vegetarian, vegan diets and multiple health outcomes: A systematic review with meta-analysis of observational studies — NIH

Type of Vegetarian Diet, Body Weight, and Prevalence of Type 2 Diabetes — NCBI

Dietary legume consumption reduces risk of colorectal cancer: evidence from a meta-analysis of cohort studies — NIH

Is a vegetarian or vegan diet for you? — Harvard Medical School

The effects of vitamin B6 deficiency on the bone marrow of the rat — NIH

Vitamin B-6 — Mayo Clinic

Lysine: The Essential Amino Acid That Builds Collagen And So Much More — SaveInstitute

Vitamin A and your bones — Harvard Medical School

Vitamin B6 Rich Fruits — Diet & Fitness Today


Dr. Adria Schmedthorst

By Dr. Adria Schmedthorst

Dr. Adria Schmedthorst is a board-certified Doctor of Chiropractic, with more than 20 years of experience. She has dedicated herself to helping others enjoy life at every age through the use of alternative medicine and natural wellness options. Dr. Schmedthorst enjoys sharing her knowledge with the alternative healthcare community, providing solutions for men and women who are ready to take control of their health the natural way.