Keto, Vegan, DASH & More: Which Popular Diet Fits Your Lifestyle?
There isn’t one “healthiest way to eat.”
At least, not in the way most people tend to think about it. What I mean by that is, there isn’t a single perfect diet that's best for everyone. In my last blog post, I talked more about why that is. If you’re curious, you can read it here.
While there is no single “best way” to eat, many eating styles can support health in different ways. None of them require you to go “all in,” and you may even prefer creating your own approach by combining elements from a variety of eating styles.
In this post, I’m going to break down some of the most popular ones, look at what they are about, and what you might want to consider before trying them.
Disclaimer:This is not a complete list of all eating styles, and this post is for informational purposes only. It is not medical advice and does not guarantee any specific health outcomes. Some of these approaches may not be appropriate for certain health conditions or medications. If you have specific health concerns, it’s best to speak with a qualified healthcare professional before making changes to your diet.
Standard American Diet
The typical American diet is a mix of foods often inspired by different cultures, but with its own twist. While it can include a wide variety of foods, many commonly eaten options tend to be more processed and higher in added sugars, sodium, and saturated fats, sometimes pushing intake above recommended levels.
That said, this doesn’t mean you need to give up this way of eating entirely. There are many ways to make this way of eating more balanced, and it’s completely okay to enjoy your favorite foods (including “junk” food) in moderation.
Pros:
Familiar and easy to follow
May feel more manageable for many people
Wide variety of food choices
Consider:
May require learning how to prepare more balanced meals
May involve making adjustments to improve overall nutrition
Affordability can still vary depending on location and food choices
Keto
The ketogenic (keto) diet is a very low-carbohydrate eating style that emphasizes fats as the primary source of energy. This typically involves significantly reducing foods like bread, pasta, rice, and sugar while increasing fat intake. Some people find this approach works well for them, while others may find it difficult to maintain long-term due to the level of carbohydrate restriction.
Pros:
May help with appetite control for some people
May support weight loss
Provides clear structure and guidelines
May help with blood sugar management in some individuals with Type 2 diabetes
Consider:
Can be difficult to maintain long term
significantly limits carbohydrate-rich foods (such as breads, pasta, rice, and many fruits and vegetables)
May cause digestive discomfort for some people
Higher fat intake can make it easier to consume more calories
May increase LDL cholesterol in some individuals, depending on food choices
May limit intake of certain nutrients found in carbohydrate-rich foods
Low-Carb
A low-carbohydrate (low-carb) diet is similar to the keto diet, but less restrictive. It focuses on reducing carbohydrate intake while allowing for more flexibility in food choices. This typically includes limiting foods like breads, grains, sugary foods, and some starchy vegetables, while emphasizing protein, fats, and non-starchy vegetables. Some fruits may still be included in moderation. Many people use this approach to reduce their overall carbohydrate intake while still having more variety than stricter diets like keto.
Pros:
May support weight loss
Provides structure without being overly restrictive
Offers more flexibility than keto
May help with blood sugar control for some individuals
Consider:
Limits certain carbohydrate-rich foods (such as breads, grains, and some fruits)
May cause digestive discomfort for some people
May reduce intake of certain nutrients if not balanced carefully
Paleo
The Paleo diet is based on the idea of eating in a way similar to how early humans may have eaten. It focuses on whole foods such as fruits, vegetables, nuts, seeds, lean meat, fish, and eggs, while typically excluding foods like grains, legumes, dairy, and most processed foods. This approach emphasizes minimally processed foods and can appeal to those looking to simplify their food choices.
Pros:
May support weight loss
Emphasizes whole, minimally processed foods
Some individuals may see improvements in blood pressure or cholesterol levels
Consider:
Can be difficult to maintain for some people
Excludes entire food groups (such as grains, legumes, and dairy)
May reduce intake of certain nutrients, such as calcium and fiber
Can be more expensive depending on food choices
Intermittent Fasting (IF)
Intermittent fasting (IF) is an eating pattern that focuses on when you eat rather than what you eat. It involves limiting food intake to specific time windows instead of eating throughout the day. There are several approaches to intermittent fasting, including methods like 16/8 (eating within an 8-hour window and fasting for 16 hours), 5:2 (eating normally most days and significantly reducing calories on two days per week), and alternate-day fasting. Some people use this approach for weight loss or to simplify their eating routine.
Pros:
May support weight loss for some individuals
Provides structure around meal timing
Does not restrict specific foods or food groups
Consider:
Can be difficult to maintain for some people
May not be appropriate for certain health conditions or medications
Some people may still consume more calories than intended
Health outcomes can vary depending on overall food choices
Vegetarian and Plant-Based Diets
The term “vegetarian” is often used as an umbrella term for several plant-based eating styles, including lacto-vegetarian, ovo-vegetarian, lacto-ovo vegetarian, and vegan. These approaches focus primarily on plant foods, though some variations include eggs, dairy, or honey. Vegan diets exclude all animal-based products and rely entirely on plant-based foods. This way of eating can be appealing for a variety of reasons, including health, personal beliefs, or environmental considerations.
Pros:
May support a healthy weight
May reduce the risk of cardiovascular disease
May support overall health and reduce the risk of certain conditions
Can align with personal or ethical beliefs
Provides structure around food choices
Consider:
May require careful planning to ensure a balanced intake of nutrients
Some people may rely more on processed plant-based foods instead of whole foods
May require fortified foods or supplements for certain nutrients (such as vitamin B12, vitamin D, calcium, iron, and omega-3 fatty acids)
Pescatarian
The pescatarian diet is sometimes grouped with vegetarian eating styles. It focuses primarily on plant-based foods while also including fish and other seafood. Some individuals who follow this diet may also include eggs, dairy, or honey. This way of eating offers a balance between plant-based nutrition and the inclusion of animal-based protein from seafood.
Pros:
More flexible than traditional vegetarian diets
Emphasizes a plant-forward approach
May support a healthy body weight
May support heart health
Provides omega-3 fatty acids from fish and seafood
Consider:
May not align with certain personal or ethical beliefs
Some individuals may need to limit certain types of fish due to mercury content
Some people may rely more on processed foods if not planned carefully
Carnivore
The carnivore diet is an eating style that focuses almost entirely on animal-based foods. This typically includes meat, poultry, fish, seafood, and eggs, with some individuals also including dairy. Most versions of this diet exclude plant-based foods such as fruits, vegetables, grains, legumes, nuts, and seeds. Some people do choose to include small amounts of vegetables or fruit to help with digestion. Because it limits or eliminates carbohydrate-containing foods, it is often considered a very low- or zero-carbohydrate approach.
Pros:
Provides a high level of structure
Simplifies food choices
May reduce intake of highly processed foods
Consider:
Can be difficult for some people to maintain long-term
Eliminates entire food groups, including plant-based foods
May lack certain nutrients, such as fiber, and others found in plant foods
May require some people to use a fiber supplement to help with digestion or GI discomfort
May raise concerns around digestion, heart health, and overall nutrient balance
Some individuals may be at increased risk for issues such as elevated cholesterol, kidney stones, or gout
Can be expensive depending on food choices
Limited long-term research is available, and many reported benefits are anecdotal
DASH
The DASH (Dietary Approach to Stop Hypertension) diet is a well-researched, heart-healthy way of eating designed to help support healthy blood pressure levels. It emphasizes a balanced intake of vegetables, fruits, whole grains, legumes, nuts, seeds, low-fat dairy, and lean proteins. Instead of focusing on strict rules, the DASH diet encourages an overall eating style of nutrient-dense foods, with an emphasis on plant-based options and whole grains.
Pros:
May help improve blood pressure and cholesterol levels
Strong evidence for heart health benefits
No need for supplements in most cases
Emphasizes whole, nutrient-dense foods
Allows a wide variety of foods
High in fiber
Consider:
Not a low-carbohydrate approach
Limits highly processed foods and added sugars
Red meat and high-fat foods are typically reduced
May require more fresh or frozen produce instead of canned goods
Refined grains (such as white bread, pasta, and white rice) are limited.
Mediterranean
The Mediterranean diet varies slightly by region, but it generally emphasizes whole, plant-based foods such as vegetables, fruits, whole grains, legumes, beans, nuts, and seeds. It also includes fish and seafood regularly, along with healthy fats like olive oil and other unsaturated fats.
This way of eating typically includes moderate amounts of dairy, poultry, and lean meats, while limiting processed foods, added sugars, and highly refined grains. Red wine may be included in small amounts for some individuals, though it is optional.
Pros:
Strong evidence for overall health benefits
May aid in weight management and sustaining long-term results
Rich in a variety of nutrients from multiple food groups
Often considered sustainable and enjoyable for many people
High in fiber
May support heart health by helping reduce inflammation, cholesterol, and blood pressure
Consider:
May require learning new recipes or cooking habits
Red meat is typically eaten less frequently
Highly processed foods and added sugars are limited
Refined grains (such as white bread, pasta, and white rice) are reduced to favor whole grains
Access, cost, and food preferences may influence how easy it is to follow
Nordic
The Nordic diet shares similarities with the Mediterranean diet. It is primarily plant-based and emphasizes seasonal, locally available foods. This includes whole grains, legumes, vegetables (especially root vegetables), fruits such as berries, fatty fish, and canola oil. It also includes small amounts of eggs and dairy, while limiting processed foods, added sugars, and red meat.
Pros:
High in fiber
Includes a wide variety of whole foods
Seasonal eating may help reduce food costs
May support healthy weight management
May help reduce inflammation, cholesterol, and blood pressure in some individuals
Consider:
Limits red meat
Highly processed and sugary foods are minimized
Refined grains are limited in favor of whole grains
May require more planning depending on food availability and access
Medically Supervised
Medical diets are eating plans that are prescribed and supervised by a healthcare professional. These diets are designed to help manage or treat specific medical conditions, such as diabetes, kidney disease, heart conditions, or swallowing difficulties (dysphagia).
When someone is placed on a medically prescribed diet, their healthcare provider works closely with them to monitor their health and make adjustments as needed. These diets can range from simple modifications to more medically complex eating plans, depending on the individual’s needs.
It is important to understand that medical diets should not be self-prescribed and should be followed only under the guidance of a qualified healthcare professional. Examples of medical diets include, but are not limited to, cardiac, diabetic, gluten-free, lactose-free, renal, low-sodium, low-protein, full-liquid, and dairy-free diets.
Medical diets play an important role in healthcare and are designed specifically for individual medical needs rather than for general population guidance.
Pros:
Supervised and tailored by a healthcare professional to meet individual needs
Consider:
These diets are medically necessary and should not be followed without professional guidance
Following certain medical diets without supervision may lead to nutrient imbalances or health risks
Questions for Reflection
If you’re curious about trying a different way of eating but aren’t sure where to start, these questions may help guide your decision:
Could this way of eating leave out entire food groups or create potential nutrient gaps for me?
Could this way of eating negatively affect my health based on my medical history or any medications I take?
Are the benefits of this eating style supported by research, or are they mostly based on personal experience and anecdotal reports?
Does this way of eating fit my personal preferences, lifestyle, and how my body responds to certain foods?
The Takeaway
There are many different ways to eat, and each eating style comes with its own set of benefits and considerations. It’s important to remember that the types of foods you choose are often just as important, if not more important, than the specific diet you follow (unless medically directed).
Even eating styles that are often considered “healthy,” such as vegetarianism or Mediterranean-style eating, can become less balanced if highly processed foods make up the majority of the diet. What matters most is the overall consistency of your eating habits, not just the label of the diet itself.
Ultimately, the best way to eat is the one that fits your health needs and lifestyle and helps you stay consistent over time. Everyone's needs and preferences are unique, so there's no one-size-fits-all answer. It's about finding what works best for you.
Remember: this post is for informational purposes only and may not be the best fit for you and your personal situation. It shall not be construed as medical advice. The information and education provided here is not intended or implied to supplement or replace professional medical treatment, advice, and/or diagnosis. Always check with your own physician or medical professional before trying or implementing any information read here.