[quote]mertdawg wrote:
First off, I said “dose-relative” toxin, like most things. Fructose only starts to show problems at about 25 grams a day, (plus more after training). This 25 grams includes half of the grams in sucrose too, because it breaks into 1 part fructose and 1 part glucose. Fruits get 1/3 to 1/2 of their sugar from fructose.
In a worse case scenario, assuming you eat fruit that gets all of its cals from sugar, and half of its total sugar from fructose, you could still eat 200 cals of fruit a day before you reach that 25 grams where scientific literature starts to show issues. That would be about a 12 oz of blueberries! Bananas get about 1/3 of their cals from fructose.
So in all, if you vary your fruits you can generally get between 200-300 cals from fruit a day to average about 25 grams of fructose which I would call the “non-toxic” edge.
You also can probably add a calorie from fructose for every 2 calories you burn from intense exercise above maybe a 300 cal per hour pace, because at that point you will deplete liver glycogen and in that case, the fructose gets promptly turned into liver glycogen.
Nuts are a problem in keeping your omega 6s down. 1 oz of almonds has about 3.5 grams of omega 6s which is OK, but I try to stay under 10 grams a day total, and average about 7, and I know I am getting about 4 grams a day from general food just in daily eating, so 1 oz of Almonds puts me at 7.5 and 2 puts me at 11 which I would consider a high day. I try to average 1 ounce of almonds max a day. Other nuts may range from 3-6 per ounce, though macadamia nuts have only about 1 or 1.5. Generally an ounce of nuts a day will keep you at an optimal level if you eliminate omega 6 oils and processed foods, and 2 ounces will put you on the top edge of the optimal zone, though with fats its more of a weekly or monthly average that matters.
Nuts can also cause some allergic issues similar to grains, but at least for me, and the 1 ounce standard, 2 oz max level they don’t affect me. Walnut skins can cause inflammation and allergic reactions in many people. I also think that skinless nuts are less likely to cause allergies. If nuts don’t cause allergies, eat them, but try to AVERAGE 1 ounce a day to keep your omega-6s optimally low.
1 oz nuts, about 250 cals from fruit a day is a good guideline.
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You seriously need to write a newsletter or something. You’ve spurred me on to reading studies on these issues, and it’s completely changing the way I think about my diet for a cut I’m about to start. I usually aim to be around 195 lbs @ 9% or so, but I’ve always loaded up on fruit (like a cup of blueberries, 2 apples, 2 bananas, and a kiwi per day), and kept my protein at around 225g, I tried 200 last cut, but got paranoid I wasn’t getting enough, and went back to 230. I’m around 300 on the bulk I’m on.
I think I’m going to try 185 on this cut, drop 1 apple and 1 banana per day, add in some other healthier fats, and bring carbs way down to the 125g per day level, unless I’m sprinting that day.
Thanks again man