nitrous oxide and L-lysine? What the hell is he doing? What an idiot for letting them in. To this day, anytime I sign a lease I always
indicate that no is is to come in unless I am home. I always say due to past bad experiences. If they try to come in my Jack Russells
loves to bite ankles. lol
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Here is some info on L-lysine:

L-lysine is an essential amino acid and therefore must be supplied in the diet. L-lysine's popularity as a supplement began as some studies found it to have antiviral action against herpes simplex virus.[1].
Food Sources

The following foods have the highest concentration of L-lysine.
  • Rich Sources: meat, poultry, milk
  • Other Sources: cheese, eggs, fish, lima beans, potatoes, soy products, yeast
  • Proteins found in grains are typically low in L-lysine; small amounts are found in vegetables and fermented foods.
Uses

The following are the primary uses for L-lysine: [1]
  • Herpes Simplex Virus: Several clinical studies show that L-lysine is beneficial in preventing and shortening outbreaks of herpes simplex infections.
  • Osteoporosis: One study has shown that L-lysine increases intestinal absorption and improves renal conservation of calcium thus it has been considered in the treatment ofosteoporosis. More research is needed in this area.
Prescribing Considerations

  • L-lysine is available in capsule, powder, and tablet form.
  • No RDA has been established for L-Lysine. To determine what your specific requirements are talk to your naturopathic doctor or other trained medical professional.
Safety

  • General Adverse Effects: High doses (>10-15g/day) may cause gastrointestinal symptoms such as nausea, abdominal cramps, and diarrhea.
  • Pregnancy Breastfeeding: One should only consider using supplemental L-lysine at this time if the diet is low in this amino acid.
  • Contraindications: L-lysine supplementation is contraindicated in those with the rare genetic disorder hyperlysinemia/hyperlysinuria.
  • Precautions: Proteins high in L-lysine relative to L-arginine such as casein are associated with elevated cholesterol. Therefore, individuals with hypercholesterolemia should be cautious of this if interested in supplementing with L-lysine. Those with hepatic and renal failure should also exercise caution if using supplemental L-lysine.
  • Drug Interactions: None are expected.
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Looks like he might have had HERPES!!! LMBAO!!!!