Consumption of EPA and DHA in fish three times per week has been found to be a major predictor of better weight management because of improved insulin resistance (44).  Furthermore, consuming at least 2 servings of fish per week is associated with a decrease in various types of chronic disease including cancer and Alzheimer disease (45, 46).  It is also wise to use a high quality fish oil supplement to add more anti-inflammatory fish oils to your diet.
While I see your point with regards to animal suffering (which is an ongoing issue), this doesn't have to be the case and on the contrary, people are more and more interested in meat from ethical sources. Watching a TED talk may be an eye opener but we should all do some research on human evolution. Your comment is biased because it only looks at one side of the argument (not to mention that some points are totally wrong, such as comparing human digestion to elephants??)
The problem with some meats when you’re on Keto is that they are too lean. That means, even though it’s low in carbs, some meat has too much protein and not enough fat. That doesn’t mean you can’t have those meats. It just means you’ll need to be careful not to go over your protein macro. And if there isn’t enough fat in the meat you eat, then you will want to pick up some extra, healthy fat somewhere else.
First, a little background: Eric Westman, MD, director of the Duke Lifestyle Medical Clinic, explained to Health in a previous interview that in order to successfully follow the keto diet, you need to eat moderate amounts of protein, reduce your carb intake, and increase fats. When you reduce your carb consumption, your body turns to stored fat as its new fuel source—a process called ketosis. To stay in ketosis, followers of the keto diet must limit their carbs to 50 grams a day, Dr. Westman says.
Juices or juice concentrate. When the fruit is juiced, most of the fiber gets stripped from the final product. This makes the net carb content of fruit juice higher than it’s pure fruit counterpart and will have a more significant impact on your blood sugar. The exception to this would be lemon/lime juice in moderation, as it’s quite low in sugar compared to other juices.
Any of these sweeteners can help you stick with your ketogenic diet, keep your carbohydrates and sugars low and still obtain your sweet fix. Many are indigestible, which means they don't become carbohydrates at all, and your body just excretes them as waste. Just make sure that if you opt to use fruit powders like lucuma and monk fruit powder, no extra sugars have been added.
Plus, many nuts are salted and may have been roasted in a tasty oil. That makes them really enticing and can lead to overeating or binging on them, which can cause weight gain as well as kick you out of nutritional ketosis. With that in mind, if you find yourself feeling out of control around nuts, you might be better off staying away from them altogether.
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