onsdag 1 maj 2013

Healthy vegans get more protein than they need

“The World Health Organization (WHO) recommends that men and women obtain 5% of their calories as protein.  This would mean 38 grams of protein for a man burning 3000 calories a day and 29 grams for a woman using 2300 calories a day.  This quantity of protein is impossible to avoid when daily calorie needs are met by unrefined starches and vegetables. For example, rice alone would provide 71 grams of highly usable protein and white potatoes would provide 64 grams of protein.” John A. McDougall, MD
Dr. John McDougall har skrivit följande peer-reviewade artikel som bl.a. innehåller detta citat:

"William Rose and his colleagues completed research by the spring of 1952 that determined the human requirements for the 8 essential amino acids.2 They set as the “minimum amino acid requirement” the largest amount required by any single subject and then they doubled these values to make the “recommended amino acid requirement,” which was also considered a “definitely safe intake.” By calculating the amount of each essential amino acid provided by unprocessed complex carbohydrates (starches and vegetables)3 and comparing these values with those determined by Rose,1 the results show that any single one or combination of these plant foods provides amino acid intakes in excess of the recommended requirements. Therefore, a careful look at the founding scientific research and some simple math prove it is impossible to design an amino acid–deficient diet based on the amounts of unprocessed starches and vegetables sufficient to meet the calorie needs of humans. Furthermore, mixing foods to make a complementary amino acid composition is unnecessary.4

The reason it is important to correct this misinformation is that many people are afraid to follow healthful, pure vegetarian diets—they worry about “incomplete proteins” from plant sources. A vegetarian diet based on any single one or combination of these unprocessed starches (eg, rice, corn, potatoes, beans), with the addition of vegetables and fruits, supplies all the protein, amino acids, essential fats, minerals, and vitamins (with the exception of vitamin B12) necessary for excellent health. To wrongly suggest that people need to eat animal protein for nutrients will encourage them to add foods that are known to contribute to heart disease, diabetes, obesity, and many forms of cancer, to name just a few common problems.5"


Inga kommentarer:

Skicka en kommentar