
There has been much speculation about Robert Downey Jr.'s diet and health routines, with the celebrated actor having undergone a notable body transformation. In his book, 'Cool Food: Erasing Your Carbon Footprint One Bite at a Time', RDJ reveals his eating habits and how he started on a pescatarian diet to maintain a healthy balance. He writes about his failed attempts to go vegan, citing vitamin B12, calcium, iodine, and iron deficiencies as reasons why a vegan diet just doesn't work for him. Instead, he opts for a sustainable and mindful approach to eating, focusing on plant-based foods while also consuming fish occasionally.
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What You'll Learn

Robert Downey Jr. tried and failed to go vegan
Robert Downey Jr. has been candid about his diet and health, and in his book, Cool Food: Erasing Your Carbon Footprint One Bite at a Time, he talks about his journey with food and how he has tried and failed to go vegan.
In his book, the actor writes about how he has attempted to go vegan and even vegetarian, but it didn't work for him. He says, "I tried going all-in vegetarian—even vegan—but it just doesn’t work for me. Without some animal protein, I find myself with low levels of vitamin B12, calcium, iodine, and iron. These are common deficiencies that can result from vegan diets." He is right about the potential drawbacks of a vegan diet, as not taking supplements or focusing on plant-based foods with specific nutrients can lead to iron and calcium deficiencies.
Downey has decided to adopt a pescatarian diet, which he feels is a happy medium. He clarifies, "The rumors are true: I’m a pescatarian. That means I eat fish every now and again... yes, in case you are wondering, I do actually need the iron that animal protein provides." The pescatarian diet includes seafood but omits red meat and poultry, and it can offer health benefits like longevity, steady blood pressure, and a lower risk of certain cancers.
Cool Food: Erasing Your Carbon Footprint One Bite at a Time is co-authored by journalist Thomas Kostigen and offers practical, sustainable shifts in eating patterns and lifestyles. It includes recipes, expert advice, and personal insights. The book emphasizes that making small, informed decisions about food can contribute to a holistic approach to a better world. It also highlights that one doesn't need to restrict themselves to a specific diet to make eco-friendly choices. Instead, it suggests taking approachable steps toward a healthy eating pattern that complements individual well-being and values.
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He is a pescatarian
Robert Downey Jr. has experimented with different diets over the years. While he has expressed an interest in the vegan diet and its potential environmental benefits, he has found that it doesn't work for him. In his book, 'Cool Food: Erasing Your Carbon Footprint One Bite at a Time', the actor writes about his experience with food and healthy eating, and how he ultimately decided on a pescatarian diet as a happy medium.
A pescatarian diet includes seafood in an otherwise vegetarian diet, omitting red meat and poultry. This allows Downey to include animal protein in his meals, ensuring he gets enough nutrients like vitamin B12, calcium, iodine, and iron, which can be lacking in a vegan diet. By including fish in his diet, Downey can also benefit from the positive health impacts associated with a plant-forward diet, such as longevity, steady blood pressure, and a lower risk of certain cancers.
Downey's decision to adopt a pescatarian diet reflects his desire to make informed choices about his food and lifestyle. In his book, he emphasizes that "cool food is really about lifestyle—transformational shifts from little actions, experiences, and different choices." He encourages readers to make sustainable choices that complement their well-being and values, rather than restricting themselves to a specific diet.
In addition to his diet, Robert Downey Jr. also prioritizes fitness and has spoken about his love for yoga. He has also shared his favourite snacks, including his go-to midnight treat of two scoops of almond butter. By sharing his insights and experiences, Downey offers his fans a glimpse into how he maintains his health and energy.
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He does yoga
Robert Downey Jr. has been candid about his struggles with addiction, describing it as a cycle that seemed impossible to break. Despite numerous attempts at sobriety, he found himself relapsing. This marked the beginning of his holistic approach to recovery, which included yoga. Yoga entered his life as part of his broader commitment to self-care and healing. Initially skeptical, he soon discovered that yoga was more than just a physical exercise. It became a spiritual and emotional anchor, offering tools to navigate the complexities of recovery.
Yoga provided RDJ with a structured and disciplined approach to rebuilding his physical health, which had been compromised during his years of addiction. The dynamic movements and deep breathing exercises of yoga promote circulation and stimulate the lymphatic system, aiding the body’s natural detoxification. Through poses like downward dog, warrior, and tree, he regained physical strength and flexibility, enhancing his overall fitness and helping him prepare for the demanding physicality of roles like Iron Man.
The physical practice of yoga is inherently calming. By focusing on movement and breath, RDJ found relief from the stress and anxiety that often accompany recovery. Yoga’s emphasis on mindfulness and self-awareness proved invaluable in addressing the underlying issues that fuelled his substance abuse. Addiction often thrives on patterns of escapism, and yoga, with its focus on the present moment, helped him break free from these patterns. By concentrating on his breath and body, he cultivated a sense of mindfulness that allowed him to confront his emotions rather than avoid them.
Practices like deep breathing (pranayama) and meditation equipped him with tools to calm his mind and navigate challenges with greater resilience. Yoga emphasizes non-judgment and self-compassion, principles that were crucial as he worked through feelings of guilt and shame. Over time, yoga became an integral part of his daily routine, complementing other aspects of his recovery journey.
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He has a book about his diet
Robert Downey Jr.'s book, *Cool Food: Erasing Your Carbon Footprint One Bite at a Time*, was released in January 2024. The book, co-authored by journalist Thomas Kostigen, presents practical steps to reduce one's carbon footprint through sustainable shifts in eating patterns and lifestyle choices.
In the book, Robert Downey Jr. writes about his experience with food and healthy eating, including his attempts to adopt a vegan or vegetarian diet. He ultimately settles on a pescatarian diet, which includes seafood in an otherwise vegetarian meal plan, omitting red meat and poultry. This decision was made to maintain his health and desired sustainable eating pattern, as he experienced low levels of vitamin B12, calcium, iodine, and iron on a fully plant-based diet.
The book contains a mix of recipes, expert advice, and personal insights. It emphasizes the importance of making informed decisions about food choices to benefit both individual well-being and the planet. Some of the specific recommendations in the book include reducing car and air travel, avoiding running appliances like dishwashers, and making sustainable food choices, such as opting for ancient grains and plant-based meat alternatives.
While the book has received some criticism from dietitians for allegedly spreading "harmful misinformation", it also provides valuable insights into sustainable and mindful eating practices. It showcases Robert Downey Jr.'s journey towards finding a balanced and healthy lifestyle that aligns with his values and well-being.
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He eats two scoops of almond butter as a midnight snack
Robert Downey Jr. has experimented with different diets over the years. While he has tried going vegan and vegetarian, he has found that these diets do not work for him due to the common deficiencies that can result from them, such as low levels of vitamin B12, calcium, iodine, and iron. As a self-described "one-man carbon footprint nightmare colossus", RDJ has a strong interest in sustainability and making eco-friendly choices.
In his book, 'Cool Food: Erasing Your Carbon Footprint One Bite at a Time', the actor shares his insights on healthy eating and how to make more informed decisions about food choices. He emphasizes that it's not necessary to restrict oneself to a specific diet to be eco-friendly. Instead, he advocates for a holistic approach that focuses on making transformational shifts through little actions, experiences, and different choices. This aligns with his belief that "cool food" is about lifestyle and making the world a better place through sustainable eating.
Despite his interest in sustainability, RDJ's primary consideration when it comes to diet is his health and finding a happy medium that complements his well-being. To that end, he has settled on a pescatarian diet, which includes seafood in an otherwise vegetarian diet, omitting red meat and poultry. This allows him to consume the animal protein he feels he needs while still incorporating plant-based foods.
Among RDJ's favorite snacks is almond butter, and he enjoys two scoops of it as a midnight treat. This snack choice fits within his overall approach to eating, which prioritizes both health and sustainability. Almond butter can be a nutritious option, offering protein, healthy fats, and various vitamins and minerals. By opting for almond butter, RDJ is able to satisfy his sweet tooth while also supporting his wellness goals.
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Frequently asked questions
Robert Downey Jr. follows a pescatarian diet. He has tried going vegan and vegetarian in the past but found that it didn't work for him due to low levels of vitamin B12, calcium, iodine, and iron.
Robert Downey Jr. decided to go vegan due to environmental concerns. He has spoken about his large carbon footprint and wanted to contribute to cleaning up the environment.
Robert Downey Jr.'s book, "Cool Food: Erasing Your Carbon Footprint One Bite at a Time," talks about his journey with food and healthy eating. It also includes recipes and insights into his family's approach to eating.
Robert Downey Jr. is a fan of yoga and working out in the gym. He also increased his caloric intake to bulk up for certain roles.











































