By Jennifer Whitmire, MS, MEd, MH, CHES, NEP

This is a question I get asked often, and I want to be clear and thoughtful about responding. Yes, I am 100% plantbased, so I have my own biases. Yes, I do believe a whole food, plant-based diet is the most supportive way of eating for human health,  that answer needs some explaining.

Who Do I Actually Serve

Most of the people who come to me are not starting from a place of optimal health. They are not feeling strong, steady, or high energy. They are dealing with things like weight gain, autoimmune conditions, digestive issues, poor sleep, or a a combination of these with a long health history. Some are trying to prevent recurrence while others are simply trying to feel like themselves again, and in many cases, this connects back to nutrient concerns that are often overlooked.

How we address the body when it is not in optimal health is different from how we address it when it is in optimal health.

The Reality Of Where Most People Are Starting 

We talk about nutrition as if everyone is starting from the same place.

They’re not.

A large percentage of the population is metabolically unwell (The most recent stats say 93%!). Blood sugar is impaired, inflammation is elevated, and systems that should be working efficiently are under constant strain, especially when energy production and nutrient balance are already compromised.

When that is the starting point, the goal is not maintenance. We have to reset the body and return to optimal health. The goal is regeneration.

It’s easy to undercut when starting 100% plant based.

What We Know About Metabolic Health

When we look at this from a research perspective, the numbers support what we are seeing in real life.

Recent data shows that a very small percentage of adults meet the criteria for optimal metabolic health. This includes markers like blood glucose, triglycerides, HDL and LDL cholesterol, blood pressure, liver markers, and waist circumference. When even one or two of these are off, the body is already working harder than it should.

Insulin resistance is often at the center of this. When cells stop responding efficiently to insulin, glucose remains elevated in the bloodstream, and the body compensates by producing more insulin. Over time, this affects energy, inflammation, hormone balance, and fat storage.

This is why so many people feel like their body is not responding the way it used to when they were younger. 

Why a Whole Food Plant-Based Approach Works Here

A whole food, plant-based diet creates conditions that support regeneration. It increases fiber, and fiber supports the gut microbiome, helps regulate blood sugar, and aids in removing excess hormones and waste products.

It is rich in phytonutrients, antioxidants, and anti-inflammatory compounds that are naturally present in plant foods.

It also helps in that it reduces or removes foods that are associated with inflammation and metabolic disruption.

This is why we see positive changes in areas like cardiovascular health, metabolic function and blood sugar, and chronic diseases when this pattern of eating is followed.

What the Research Shows

Whole food, plant-based diets have been studied for decades in relation to chronic disease, and the results are consistent.

In cardiovascular research, plant-based dietary patterns have been shown not only to prevent but in some cases reverse heart disease when followed consistently. This is tied to improvements in endothelial function, reductions in LDL cholesterol, and decreased inflammation.

In metabolic health, increasing fiber intake through whole, plant foods improves insulin sensitivity and helps regulate blood sugar. Fiber slows the absorption of glucose, feeds and supports “good” gut bacteria, and aids in reducing systemic inflammation.

The gut microbiome is another important piece. Diets rich in diverse plant foods increase microbial diversity associated with better immune function, improved digestion, and reduced risk of chronic disease.

We also see consistent findings in longevity research. Populations with the longest lifespans tend to eat diets centered around whole, plant foods with high fiber intake, a wide variety of nutrients, and minimally, processed foods.

This is not based on one study. It is a pattern that shows up across multiple areas of research.

Where Animal Foods Fit Into This Conversation

If someone is truly healthy, meaning they have stable energy, strong metabolic function, no underlying or suspected illness, and their body is functioning the way it should, there may be some flexibility, but that is not where most people are in today’s world.

Most people are trying to recover from something. When the goal is recovery, the margin for what the body can handle is smaller.

Why This Matters for My Clients

The people I work with are not looking to maintain their health. They want change.

They want to lose weight in a way that is sustainable. They want to reduce or reverse autoimmune symptoms. They want their digestion to be predictable. They want to sleep through the night and have consistent energy during the day.

They want their body, sleep, and energy to feel reliable again.

That requires removing what is contributing to the problem and consistently providing what supports repair.

What Actually Supports That Process

In practice, this comes back to patterns.

• A wide range of plant foods. (3o+ different plants a week)
• Consistent fiber intake. (only plants have fiber)
• A variety of colors. (Eat the Rainbow)
• Beans, greens, vegetables, fruits, nuts, and seeds.

When these foods are combined with omega-3 rich sources such as flax, chia, hemp, and walnuts, along with mineral-rich foods like leafy greens, legumes, and seeds, the body has the raw materials, vitamins, minerals, and phytonutrients that it needs to function more efficiently.

Why Fiber Changes Everything

Fiber is one of the most overlooked components of nutrition even though it influences almost every system we are trying to support.

It directly affects blood sugar balancing by slowing digestion and reducing spikes in glucose and insulin. It binds to excess hormones and waste products to help the body eliminate them more efficiently.

It also feeds beneficial gut bacteria which produce short-chain fatty acids. These compounds support the integrity of the gut lining, reduce inflammation, and influence metabolic health.

Most people are not getting close to the amount of fiber needed to support these processes.

When fiber increases consistently, the effects are often noticeable in digestion and energy.

This is what it looks like in everyday meals, even in simple things like how you build a meal or choose staple foods.

It’s important to focus on variety to prevent boredom.

What Happens Over Time

When this way of eating is followed consistently, people often begin to notice changes fairly quickly.

They notice that their energy becomes more stable and predictable. Their digestion gets back on track. Inflammation and pain improve sometimes in as quickly as 3 days. Weight begins to regulate depending on the situation.

These changes do not happen overnight, but they build over time after a consistent eating pattern.

Why These Changes Happen

As fiber intake increases and blood sugar stabilizes, the body becomes more efficient at using energy. This reduces the cycle of spikes and crashes that many people experience throughout the day.

As inflammation decreases, systems that were under constant stress begin to function more normally. This can affect everything from digestion to joint discomfort to sleep quality.

Nutrient density is also important. When the body consistently receives a wider range of vitamins, minerals, and phytonutrients, it has the raw materials needed for repair and regulation. These changes build on each other.

When Flexibility Might Make Sense

Once someone reaches a point where they feel strong, stable, and consistently well, there may be room to experiment, but that comes after health has improved, energy has improved, and lab markers show they are in the optimal range.

Even then, it is approached with awareness that it could set them back.

A More Accurate Way to Answer the Question

Do I think everyone should follow a whole food plant-based diet?

For someone who is trying to restore their health? Yes.

The goal is not just to eat differently but to create an environment where the body can function the way it is designed to work.

For most people, that requires more support than they are currently getting.