More Protein & More Muscle Isn’t Always Better for Longevity | Dr. Joel Fuhrman
Joel FuhrmanPublished on August 23, 2026
Summary authored by editor@wellifi.com
TLDR Summary
Beans are an excellent source of protein and resistant starch, providing health benefits that can aid in muscle gain while stabilizing blood sugar. For athletes, incorporating plant-based protein sources is recommended for better health outcomes and longevity.
Key Points
- Beans are high in resistant starch, which helps stabilize blood sugar levels.
- They provide a significant amount of protein, often more than animal products when considering absorbed calories.
- Incorporate high protein plant foods like hemp seeds and pumpkin seeds for muscle gain.
- Plant-based proteins are recommended over whey due to health risks associated with IGF-1 levels.
- Balance muscle gain goals with health and longevity considerations.
The Power of Beans: Nutritional Benefits and Protein Sources
Beans are an often overlooked powerhouse of nutrition, providing numerous health benefits and serving as an excellent source of protein. In this article, we’ll explore the types of beans you can include in your diet, their unique properties, and how they can contribute to your overall health and performance, particularly for those looking to build muscle.
Types of Beans to Consider
When it comes to beans, variety is key. Here are some types you can incorporate into your meals:
- Lentils
- Black beans
- Red beans
- Azuki beans
- Kidney beans
- Soybeans
It's important to note that while green beans are a healthy addition to your diet, they are classified as a vegetable rather than a bean.
Health Benefits of Beans
Beans are not just a source of protein; they offer several health benefits thanks to their unique composition:
- High in Resistant Starch: Beans contain significant amounts of resistant starch, which is not absorbed in the gut and helps to stabilize blood sugar levels, preventing glycemic spikes.
- Gut Health: The resistant starch is fermented by gut bacteria into short-chain fatty acids, notably butyrate, which signals the brain to reduce appetite.
- High Protein Content: Beans can provide more protein than many animal products when accounting for the calories absorbed. About 35% of the calories in beans come from protein, which can increase to around 45% when considering resistant starch.
Beans vs. Animal Products for Muscle Gain
For those aiming to build muscle, it’s crucial to assess your protein intake. While beans are a great source of protein, athletes may have higher needs. Here are some recommendations:
- High Protein Plant Foods: Incorporate foods like hemp seeds, sunflower seeds, pumpkin seeds, and almonds. These foods are nutrient-dense and provide substantial protein without the health risks associated with high animal product consumption.
- Protein Powders: If considering protein powders, plant-based options such as hemp and pea protein are recommended over whey or soy protein, as the latter can raise IGF-1 levels, which may increase cancer risks.
While it is possible to consume a high protein diet without animal products, it may be challenging for those looking to gain significant muscle mass. Research indicates that individuals with higher body weight and muscle mass may have shorter lifespans, particularly in sports that require excessive bulk.
The Trade-Off Between Muscle Mass and Longevity
It’s essential to balance the desire for muscle gain with overall health and longevity. Athletes who prioritize lean muscle mass and a plant-based diet tend to have better long-term health outcomes compared to those who bulk up significantly with animal products.
Conclusion
Incorporating a variety of beans and high-protein plant foods into your diet can provide significant health benefits and help manage appetite while supporting muscle gain. However, it is crucial to consider the implications of a high-calorie, high-animal product diet on longevity. Striking a balance is key to achieving both fitness goals and overall well-being.