All about fruitarianism with a long-term fruitarian, Lena

Vegetarian

Vegetarian diet excludes meat (red meat, poultry, seafood, and the flesh of any other animal).

  • Lean Meat is Not Pure Protein

    "Lean meat" is a misleading term. I noticed many times in conversations that people who think that they eat "proteins" tend to think about this food group as an almost pure protein, a perfect set of essential amino acids. Especially if they consume so called "lean meats." 

    In beef (presented as "90% lean meat") - half of the calories are from fat (http://nutritiondata.self.com/facts/beef-products/6193/2). Even in the leanest bird meat approximately the fifth of the energy is from fat, ~18% in the leanest I could find (http://nutritiondata.self.com/facts/poultry-products/704/2).

    Digestibility-corrected amino acid score (PDCAAS) of protein in beef is only 0.92, chicken - 0.91(?), and egg whites and soy - 1 or 100% (not that it matters much). Note, that 62% of calories in a whole egg are from fat, and 40% in soybeans. 

  • Vegans in Britain Tripled in Ten Years

    The number of vegans in Britain has risen by 360% in 10 years. Vegans in the UK are typically city dwellers, aged between 15-34 and motivated by ethical and compassionate reasons.

    World tennis No.1 Novak Djokovic credits a vegan diet with transforming his health and fitness levels and last month opened a vegan restaurant in Monte Carlo. 

  • Non-Sweet Fruit Salad

    Non-sweet fruitarian salad - basic, easy, and quick

    Let me tell you how I make a basic non-sweet fruitarian salad, step by step, with 12 pictures.

    This is a very simple recipe. Making this tomato-based salad, you can skip any ingredient, according to your preferences or mood, and still have a decent fairly healthy basic fruitarian or frugan meal. It takes less than 10 minutes to make it if you already have tomatoes and some avocadoes, chips, or greens. The dishes are easy to wash afterwards.

     The ingredients you can usually get in any grocery store, in any season. People who have no interest in following any special diet can enjoy this salad too, as well as all vegetarians - it is vegan. 

  • Defining Fruitarianism

    I was adjusting my definition of fruitarianism for 20 years, periodically changing it after reflecting on what I learned and experienced. You can read it on the top of the page, and the current version is this: 

    Fruitarianism - a quest for optimal ethical ways to live and diets based on fruits and seeds. 

    This is the line I just attempted to add to the definition of fruitarianism on the Wikipedia page
    "Fruitarianism can also be viewed as a set of ethical values, including respecting lives of plants, and their implementation in lifestyle." But I could not find eligible resources to cite.

    Wiki is the most popular resource online, and the article dedicated to fruitarianism requires some explanation for most people who are new to the term. In this article, I will also give my personal perspective of a practicing skeptic fruitarian.

  • My Fruitarian Story

    This is me.

    Hi, my real name is Lena, I founded this site Fruitarians.net in 2010 as an international fruitarian community. 

    Fruitarianism for me is a quest for optimal ethical ways to live and for all good diets based on fruits and seeds.  

    I am a long term vegan-fruitarian, who radically changed her lifestyle as a teenager, at 18, and maintained and adjusted it during two following decades. I doubted fruitarianism, but my fruitarian position remains surprisingly strong. This a very short version of my fruitarian story.

  • Open Letter

    Hi, thank you for checking out Fruitarians.net! My name is Lena, I am also known as Fruitarian Lena. I am a long-term vegan fruitarian, the founder of the site (the former International Fruitarian Network) - my attempt to provide an independent inviting platform for all people to tell about their ethical lifestyle choices, and to participate in the civil public debate. Currently, I am considering my options in building an interesting resource on fruitarianism. 

    I believe the future of humanity depends on our ability to come to certain agreements

    If you are interested in realistic approaches to fruitarianism and veganism, in ethical and environmental changes we can make, and in attracting people to an open conversation about these topics, beyond cooking, looks and fitness, please help me to to develop Fruitarians.net with new ideas and to join the conversation in public videos.

    My plans for the future of this site are summarized in this public letter to past and future participants and supporters.

Anatole France

Until one has loved an animal, a part of one's soul remains unawakened. 

Protein Structure, Cooked and Denatured Proteins

Proteins are chains of amino acids. The sequence of amino acids in a chain is known as the primary structure of a protein. The chains fold up to form complex three dimensional shapes. The chains can fold on themselves locally (secondary structure) and wrap around themselves to form a specific three dimensional shape (tertiary structure).

The secondary / tertiary structure of a folded protein is directly related to its function. For example, enzymes are proteins that catalyze reactions. They have binding sites that interact with other molecules. These binding sites are created through the folding of the amino acid chains that gives rise to the three dimensional shape of the enzyme.

Denatured Protein

Denaturation of proteins involves the disruption and possible destruction of both the secondary and tertiary structures. Since denaturation reactions are not strong enough to break the peptide bonds, the primary structure (sequence of amino acids) remains the same after a denaturation process. Denaturation disrupts the normal sheets in a protein and uncoils it into a random shape.

Denaturation occurs because the bonding interactions responsible for the secondary structure (hydrogen bonds to amides) and tertiary structure are disrupted. In tertiary structure there are four types of bonding interactions between "side chains" including: hydrogen bonding, salt bridges, disulfide bonds, and non-polar hydrophobic interactions. which may be disrupted. 

Proteins can be denatured through exposure to heat or chemicals. Denatured proteins lose their three dimensional structure and thus their function. 

Digestion of Proteins and Cooking

Protein digestion begins in the stomach, where the acidic environment favors protein denaturation. Denatured proteins are more accessible as substrates for proteolysis than are native proteins. The primary proteolytic enzyme of the stomach is pepsin, a nonspecific protease that is maximally active at pH 2. Thus, pepsin can be active in the highly acidic environment of the stomach, even though other proteins undergo denaturation there.

Heat disrupts hydrogen bonds and non-polar hydrophobic interactions. This occurs because heat increases the kinetic energy and causes the molecules to vibrate so rapidly and violently that the bonds are disrupted

Foods are cooked to denature the proteins to make it easier for enzymes to digest them. Cooking food denatures some of the proteins in it and makes digestion more efficient. Heating to denature proteins in bacteria and thus destroy the bacteria.

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