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The Keto Reset Diet That Reversed This UFC CEO's Biological Age in 10 Weeks

A UFC CEO sat across from a human biologist named Gary Brecka and was told he had 10.4 years left to live. Ten weeks later he was 40 pounds lighter, his sleep apnea was gone, and he told Piers Morgan he felt years younger. The intervention was a keto reset diet, paired with hormone correction and a strict training protocol. Here is exactly what that diet is, and the science behind why it works on metabolic syndrome.

Quick Answer: The keto reset diet is a 10-week, high-fat, moderate-protein, low-carb protocol (roughly 70 to 75% fat, 20 to 25% protein, 5 to 10% carbs) designed to reverse metabolic syndrome by lowering insulin, raising HDL cholesterol, and reducing inflammation. It emphasizes whole foods, eliminates seed oils and refined sugar, and centers on grass-fed meats, pasture-raised eggs, low-glycemic vegetables, and the small handful of nuts that are actually low-carb and low in inflammatory fat.

What Gary Brecka actually changed

Brecka's framework is built around metabolic syndrome, the cluster of markers that drives most cardiovascular disease in the United States. The American Heart Association defines it as having any two of these five: abdominal obesity, low HDL cholesterol, elevated LDL or triglycerides, elevated fasting insulin, and high blood pressure. Most American men over 50 hit two or more.

The reversal protocol has three pillars:

  1. Hormone balance. Correcting testosterone, cortisol, and thyroid markers via bloodwork.
  2. Nutrient deficiencies. Identifying and filling specific vitamin and mineral gaps that show up on labs.
  3. Glycemic control via a keto reset. Dropping carbohydrate intake to the point where fasting insulin falls, the body shifts to burning fat, and the underlying drivers of metabolic syndrome start unwinding.

The keto reset is the part anyone can apply without a private biologist on retainer.

The keto reset protocol, exactly as Brecka prescribes it

Macronutrient split:

  • 70 to 75% calories from fat
  • 20 to 25% calories from protein
  • 5 to 10% calories from carbohydrates

Duration: 10 weeks for a full metabolic reset (a shorter 21-day version is used as an introduction).

Morning rule (the 30-30-30 method): 30 grams of protein within 30 minutes of waking, followed by 30 minutes of low-intensity exercise. The protein-first morning is designed to stabilize blood sugar for the rest of the day.

Approved foods:

Category Foods
Proteins Grass-fed beef, line-caught wild salmon, pasture-raised eggs
Fats and oils Grass-fed butter, ghee, tallow, coconut oil, olive oil, avocado oil, macadamia oil
Vegetables Asparagus, broccoli, Brussels sprouts, arugula
Fruit Berries (in moderation)
Other Avocado, coconut milk, organic rice (in small amounts), raw macadamias and pistachios

Foods to avoid:

  • Seed oils (canola, soybean, corn, sunflower, safflower, cottonseed, grapeseed, rice bran)
  • Refined sugar and high-fructose corn syrup
  • Whey protein (Brecka recommends plant-based protein powders instead)
  • Non-organic fruit and produce
  • Most processed snack foods

The nut question, made explicit. Brecka has been public about which nuts fit the protocol and which don't. On his own X account he wrote: "Macadamia & Pistachios (raw): low in linoleic acid, rich in healthy fats. Peanuts: not a nut, high in mycotoxins, inflammatory." The reason matters, because most people on keto reach for whichever nut is in the pantry, and the differences between them are significant.

Why nut choice matters on a keto reset

A keto reset is about two things at once: lowering the carb load to drop insulin, and raising the quality of the fat to reduce inflammation. Most common nuts fail on one axis or the other.

Net carbs per ounce, USDA FoodData Central:

Nut Net carbs (g/oz) Linoleic acid (% of fat) Oxalates
Macadamia 1.5 ~2% Lowest of common nuts
Pecan 1.2 ~20% Moderate
Brazil nut 1.4 ~24% High
Walnut 2.0 ~38% Moderate
Almond 2.5 ~13% Highest of any common nut
Pistachio 5.0 ~14% Moderate
Cashew 7.7 ~14% High

Macadamias are the only common nut that wins on every axis: lowest net carb load, lowest inflammatory fat content, and lowest oxalate content. About 80% of the fat in a macadamia is monounsaturated, which is the same fat class that gives olive oil its cardiovascular reputation.

The four mechanisms by which macadamias address metabolic syndrome

This is where the keto reset and macadamias overlap most directly. Macadamias are not a treatment for metabolic syndrome. But the nutrients in them act on four of the five metabolic syndrome markers, through four distinct mechanisms.

1. Monounsaturated fat raises HDL and lowers LDL.
Decades of cardiovascular research, including the PREDIMED trial on Mediterranean diets, have shown that diets high in monounsaturated fat improve the HDL-to-LDL ratio. Two human trials on macadamias specifically (Garg et al., Journal of Nutrition, 2003; Griel et al., Journal of Nutrition, 2008) showed that a macadamia-rich diet reduced LDL and total cholesterol in adults with elevated baseline cholesterol. Macadamias are roughly 80% monounsaturated fat, the highest of any common nut.

2. Low carbohydrate load supports insulin sensitivity.
At 1.5 grams of net carbs per ounce, macadamias are the lowest-carb nut available. They fit inside a strict keto reset without measurably affecting glucose or insulin, which is exactly what the protocol requires.

3. Palmitoleic acid (omega-7) addresses three metabolic markers at once.
Macadamias are the richest known dietary source of palmitoleic acid, an omega-7 fat. Studies on palmitoleic acid have linked it to improved insulin sensitivity (Yang et al., Journal of Nutritional Biochemistry, 2011), reduced triglyceride levels, increased HDL cholesterol, and lower inflammatory markers including C-reactive protein and TNF-alpha. That covers insulin, HDL, triglycerides, and inflammation, four of the five metabolic syndrome drivers, through a single fatty acid.

4. Reduced inflammation, measured directly.
The Noakes Foundation and SAMAC ran a pilot study measuring C-reactive protein, a standard inflammation marker, in participants who used macadamia oil over an 8-week period. The trial measured a reduction in CRP. Chronic inflammation is one of the underlying drivers of cardiovascular disease and metabolic dysfunction, and is a target the keto reset specifically addresses.

What this means for someone running their own keto reset

You don't need a celebrity biologist to know whether you have metabolic syndrome. A standard blood panel and a tape measure will tell you. If two or more of the five markers are off, the keto reset protocol gives you a starting framework: 70 to 75% fat, 20 to 25% protein, 5 to 10% carbs, real food, no seed oils, and the small group of nuts that actually fit the math.

Among nuts, macadamias are the cleanest one to build on. Lowest net carbs, lowest inflammatory fat, lowest oxalates, highest omega-7. The same profile Gary Brecka publicly recommends when he's asked which nuts to eat.

House of Macadamias sells single-origin South African raw macadamias and cold-pressed macadamia oil with no additives, available here.

Frequently asked questions

What is the keto reset diet?
The keto reset diet is a high-fat, moderate-protein, low-carb eating protocol designed to reset metabolism, lower insulin, and reverse the early markers of metabolic syndrome. Macronutrients are typically 70 to 75% fat, 20 to 25% protein, and 5 to 10% carbohydrates. It runs for either 21 days as an introduction or 10 weeks as a full reset.

What is the 30-30-30 method?
The 30-30-30 method is the morning rule of Gary Brecka's keto reset protocol: 30 grams of protein within 30 minutes of waking, followed by 30 minutes of low-intensity exercise. It is designed to stabilize blood sugar and build lean muscle.

What nuts can you eat on the keto reset diet?
Raw macadamias and raw pistachios are the nuts Gary Brecka publicly recommends. Macadamias have the lowest net carb count of any common nut (1.5g per ounce), the lowest inflammatory fat content (about 2% linoleic acid), and the lowest oxalate level. Cashews and standard pistachios are typically too high in carbs for a strict reset.

Can macadamia nuts help with metabolic syndrome?
Macadamias address several of the metabolic syndrome inputs at once. They are high in monounsaturated fat, which has been shown in human trials to raise HDL and lower LDL cholesterol. They are low enough in carbs to support insulin sensitivity. They contain palmitoleic acid (omega-7), which has been studied for improvements in insulin sensitivity, triglycerides, and inflammation markers.

What foods are not allowed on the Gary Brecka keto reset diet?
Seed oils (canola, soybean, corn, sunflower, safflower, cottonseed), refined sugar, whey protein, non-organic produce, and most processed foods. Brecka recommends plant-based protein powders over whey.

How long does the keto reset diet last?
The introductory version is 21 days. The full reset, as followed by Dana White, is 10 weeks. After the reset, most people transition to a less strict low-carb maintenance approach rather than staying in ketosis indefinitely.

Is macadamia oil good for cooking on keto?
Yes. Macadamia oil has the highest smoke point of any common cooking oil (450°F), the lowest linoleic acid content (about 2g per 100g), and the highest monounsaturated fat content. It does not oxidize at standard cooking temperatures, which is the primary concern with seed oils on a metabolic reset. Compare macadamia oil vs avocado oil here.