Expecially in reponse to an article that talks at length about others in nutritional science using ad hominem attacks as a primary form of defence against dissident arguments.
A cosmologist may know all about the orbit of the planets but still say 'The sun rose this morning'.
Against alternative explanations, I prefer. Dissident carries a negative connotation that is unwarranted here.
All the studies claiming to make these links have been comprehensively debunked. And it's worth remembering that the vast, vast bulk of fats and cholesterol in your body are not dietary, they were produced inside your body from other macro-nutrients. And they are essential. Without them you would die.
On a very basic level, blood flow gets blocked because inflammation in your arteries causes cholesterol manufactured by your liver to stick to the walls and build up. Consuming saturated fat does not cause this inflammation. Whereas there is evidence that consuming sugar does.
http://www.ncbi.nlm.nih.gov/pubmed/20820038
http://www.ncbi.nlm.nih.gov/pubmed/22850317
http://www.cell.com/cell-metabolism/fulltext/S1550-4131(15)0...
and make you gain weight http://www.nih.gov/news-events/news-releases/nih-study-finds...
Re: 20820038 - Keto is low carb, moderate protein. it doesn't really matter where you get the protein from.
Re: 22850371 - Again, Ketogenic is not HIGH protein diet as eating too much protein is just turned into sugar which defeats the whole purpose of eating keto... so yes, if you eat a lot of fat, and a lot of sugar, you will die sooner.
re: Cell.com - it measured whether or not these people went into ketosis for 6 whole days, when it takes upwards of 3 months to become keto-adapted. It takes the average person (not the morbidly obese person) 3-5 days just to get into ketosis, let alone keto-adapted.
Keto macros are supposed to (generally) be:
80% calories from fat (I try to get 200g/day)
15% calories from protein (I try to keep mine around 120g/day)
5% calories from carbs (keep it under net 20g/day)
This is pretty difficult to do. I usually end up somewhere around 70-75% fat, 7%ish carbs, 20%ish protein. But at least I can eat bacon wrapped avocados without guilt... i'm constantly adjusting to get my macros. I just added MCT oil to the daily diet.
I was (am?) obese when I started this and I've dropped a considerable amount of weight (30+lbs), and my blood sugar has dropped and stabilized. I'm not keto-adapted yet, though.
http://www.ncbi.nlm.nih.gov/pubmed/12716665
http://www.ncbi.nlm.nih.gov/pubmed/2619783
http://www.ncbi.nlm.nih.gov/pubmed/20071648
"CONCLUSIONS: A meta-analysis of prospective epidemiologic studies showed that there is no significant evidence for concluding that dietary saturated fat is associated with an increased risk of CHD or CVD. More data are needed to elucidate whether CVD risks are likely to be influenced by the specific nutrients used to replace saturated fat."
Fructose, which Lustig (and other scientists) suspect as the prime cause is present in both HFCS and granulated sugar (cane or beet). It’s my understanding that the difference in fructose quantity between HFCS (55% Fructose, 45% glucose) and granulated sugar (50-50) is not a significant factor.
Difference between sugar and HFCS in the US is generally people add sugar themselves. And HFCS is added by the producer. Compare you putting a teaspoon of sugar in your coffee with the 10 teaspoons of HFCS in a can of coke. If you buy your coke at the quik mart it may also be HFCS 70/30 to boot.
I just googled images and videos of him, in case your statement had some validity. The Lustig I saw looked like an ordinary man. Not detectably obese and certainly not morbidly obese.
I don't believe this statement is true. Calories in pizzas are generally around 1:1 from carbs:fat[1]. Likewise with a typical (i.e. low cocoa solids) chocolate bar[2], milk[3], or cake[4].
Calories in a milkshake are likely to be from 2:1 carbs:fat, at best (milkshake generally equals milk, plus sugar, fruit and flavourings).
[1] http://corporate.dominos.co.uk/Media/Default/CSR/Nutritional... [2] http://www.tesco.com/groceries/product/details/?id=273968548 [3] http://www.tesco.com/groceries/product/details/?id=254656543 [4] http://www.tesco.com/groceries/product/details/?id=257617038
Those are all junk food. Use sparingly. Try eating a piece of fruit instead.
I mean, FFS, I really like chocolate, but of course it's unhealthy. Salads and fish are healthy. Everyone knows that.
let's have an example, lets say you eat a balanced diet, plenty of fibre, micronutrients, protein, fats, and you have 300 calories left for the day before you go over your maintenance intake. you decide to eat a mars bar. unhealthy? not at all.
another example, you don't eat enough fibre, because all you eat is pizza pockets. you drink coke instead of water, you go over your maintenance intake by 500 calories and decide to have a mars bar. unhealthy? yes. but it wasn't the specific food that was unhealthy.
unfortunately things aren't as simplistic as you want them to be, you have to look at things in the context of the diet.
Eat sparingly.
Balance.
Saturated fats still do cause heart disease, strokes, alzheimers.. anything where blood is blocked or doesnt reach the organ it needs to.
If anything, processed sugars like HFCS which is extracted from corn by a chemical enzyme process, could be the cause. But the problem to me is when people think chocolate bar, cake, pizza or milk shake.. these are food items with 75% calories from fat. So if you exclude high fat items and greatly reduce heavily processed sugar foods, you will not have the issues we are facing today.