The NAD+ molecule is twice as large as NR or NMN, and is totally
degraded in the Gastro-Intestinal tract, so researchers do not use NAD+ in drinking water of mice
and it is not sold in capsule form for humans.
NAD+ in IV or IP injections
Research has been successful using NAD+ injections in mice.In humans, clinics that provide NAD+ by IV are
exploding in popularity, even though they charge over
$1,000 a day and require the patient to be hooked up to a drip IV for 8 hours.
NMN and NR poor bioavailability in capsules
NMN and NR capsules are only partially digested in the stomach, but are almost totally metabolized
in the liver and excreted as NAM
.
Molecules like NMN, NR and NAD+ that have low molecular weight and are hydrophilic β they can be
absorbed through the capillaries under the tongue directly into the bloodstream. This is called
Sublingual (under the tongue) delivery.
Sublingual delivery can bypass the stomach and liver.
This solves the bioavailability problem of capsules that are digested in the stomach, so NAD+ can be
used instead of NAD+ precursors. It also greatly improves the effectiveness of NMN.
There are a number of lifestyle changes you can make to increase NAD+ in you body
Itβs well known that Calorie Restriction (CR) can extend longevity by 30β50% in many mammals

Ketosis is a metabolic state in which fat provides most of the fuel for the body. It occurs when
there is limited access to glucose (blood sugar), which is the preferred fuel source for many cells
in the body.
Ketosis can occur in many different diet plans whenever carb intake is low, but is most often
associated the Diet, as that is a much easier method for restricting carbs.
Recent research now shows Ketosis provides the benefit in life extension,lowering inflammation and
boosting NAD+ .
Intermittent or Periodic Ketosis is also effective at extending lifespan and likely achieves much of the
benefit.
Some research even shows more benefit from a cyclical rather than a full time Ketogenic Diet.
Ketogenic Diet Reduces Midlife Mortality and Improves Memory in Aging Mice(Newman, 2017)
The Red bars in the chart at left show the increased levels of the Ketone Body BHB produced from a
cyclical Keto diet, resulting in Increased NAD+ and greatly improved neurological function and
health.
Researchers are finding that 2-3;short bouts of High Intensity
Interval Training(HIIT)per week is far more effective at lowering inflammation (and increasing
NAD+),especially among older adults
Exercise is very effective at boosting AMPK and NAD+, especially when performed at times of low blood
glucose
levels.
Short bouts of HIIT accomplishes the goal, while avoiding overtraining from endurance workouts which
increases inflammation and consumes NAD+.